Home Cart 0 Sign in  

[ CAS No. 2491-20-5 ]

{[proInfo.proName]} ,{[proInfo.pro_purity]}
Cat. No.: {[proInfo.prAm]}
Chemical Structure| 2491-20-5
Chemical Structure| 2491-20-5
Structure of 2491-20-5 * Storage: {[proInfo.prStorage]}

Quality Control of [ 2491-20-5 ]

Related Doc. of [ 2491-20-5 ]

SDS
Alternatived Products of [ 2491-20-5 ]
Alternatived Products of [ 2491-20-5 ]

Product Details of [ 2491-20-5 ]

CAS No. :2491-20-5 MDL No. :MFCD00063663
Formula : C4H10ClNO2 Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W :139.58 g/mol Pubchem ID :2733257
Synonyms :

Safety of [ 2491-20-5 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 2491-20-5 ]

  • Upstream synthesis route of [ 2491-20-5 ]
  • Downstream synthetic route of [ 2491-20-5 ]

[ 2491-20-5 ] Synthesis Path-Upstream   1~29

  • 1
  • [ 2491-20-5 ]
  • [ 246258-07-1 ]
  • [ 50890-67-0 ]
Reference: [1] European Journal of Organic Chemistry, 2001, # 10, p. 1821 - 1829
  • 2
  • [ 2491-20-5 ]
  • [ 39537-23-0 ]
Reference: [1] Bioscience, Biotechnology and Biochemistry, 2011, vol. 75, # 11, p. 2087 - 2092
  • 3
  • [ 67-56-1 ]
  • [ 56-41-7 ]
  • [ 2491-20-5 ]
YieldReaction ConditionsOperation in experiment
100%
Stage #1: at -15 - 0℃;
Stage #2: for 3 h; Reflux
The L-alanine was used as substrate to produce (S)-alanine methyl ester hydrochloride (1a) according to the literature. (Xing et al., 2012). Add 15 mL of absolute methanol to the round bottom flask. Slow-drop 2.16 mL of SOCl2 (0.03 mol) into absolute methanol at −15 °C and maintained at 0 °C for an hour. Take 14 mL of absolute methanol and 1.4 mL (0.019 mol) of SOCl2 to another round bottom flask with the above steps. Then, 1.118 g of L-alanine were put into the solution and heating reflux for 1.5 h. After concentrated the solution under reduced pressure, the initial preparation of the SOCl2 solution was poured into the round bottom flask and continued reflux for 1.5 h to give 1a (yield 100percent). Since the hydrochloric acid produced in this step was not conducive to the next reaction, put NaHCO3 into the round bottom flask when reflux was ended to destroy its acidity until no more bubbles are generated. Finally, the solution was concentrated to afford 1b (yield 100percent).The fusaric acid (4) and 1b together with 15 mL of dichloromethane were put into a round bottom flask and stirred uniformly, then an excessof catalyst dicyclohexylcarbodiimide (DCC) and 4-dimethylaminopyridine (DMAP) were added and reflux for 24 h. Concentrated the solution under reduced pressure and the product was purified by using preparative HPLC (25–45percent CH3CN/H2O, 20 min) to obtain 1c (yield 52percent).
99% at 20℃; for 2 h; SOCl2 (21.8mL, 0.3mol) and (S)-alanine ((S)-19, 8.91g, 0.1mol) were added to CH3OH (100mL) and the mixture was stirred at RT for 2h. The solvent was removed in vacuo, the residue was dissolved in methanol (30mL) and the organic solvent was removed in vacuo again. This procedure was repeated twice. Colorless amorphous solid, mp 103°C (Ref. 39 mp 98–99°C), yield 14.3g (>99percent). [α]589=+7.9 (c=0.94, CH3OH) [Ref. 38 [α]589=+7.4 (c=1.76, CH3OH)].
98%
Stage #1: With thionyl chloride In water at -14 - -10℃; for 1 h;
Stage #2: for 4 h; Reflux
Take 125mL of methanol and add it to a 250mL three-necked flask (ensure that the environment is anhydrous during the reaction, with a drying device; the reaction will generate HCl and SO2 gas, use a lye absorption device) and cool it in a constant temperature reaction bath to - At 14°C, 10 mL (0.138 mol) of SOCl2 was slowly added dropwise with magnetic stirring. The reaction temperature was controlled to be below -10°C during the dropwise addition, and the reaction was continued for 1 h after the addition was completed. The reaction solution was transferred to a 250 mL round-bottomed flask, and the temperature was naturally raised to room temperature. 12.21 g (0.137 mol) of alanine was added and the reaction was stopped by heating to reflux under magnetic stirring for 4 hours. The product was evaporated and the solvent was distilled off to give alanine methyl ester hydrochloride as a yellow viscous liquid with a yield of 98percent. It can be used directly in the next step without purification.
96.4% at -5 - 20℃; General procedure: A suspension of L-amino acid (50mmol) in methanol (50mL) was stirred under ice cold conditions. Thionyl chloride (5mL) was slowly dropped to the solution at−5°C. Then, the mixture was allowed to slowly warm to room temperature while being stirred. The reaction was monitored by TLC (N-butanol: water: acetic acid=4:1:1). When the reaction was completed, the solvent was evaporated under reduced pressure to afford the crude product, which was recrystallized from methanol/ether to give a white solid.
7.7 g at -20 - 20℃; To a solution of L-alanine (5.0 g, 56 mmol) in methanol (60 mL) at -20°C was added dropwise thionyl chloride (6.1 mL, 84 mmol) and the mixture was stirred at ambient temperature overnight. The solvent was removed in vacuo. The solid residue was washed with diethyl ether, filtered and dried under vacuum to afford the title compound as a white solid (7.7 g). The crude product was used without further purification in subsequent reactions.1 H NMR (500 MHz, d4-MeOH) δ 4.1 1 (q, 1 H), 3.84 (s, 3H), 1.54 (d, 3H).
3.36 g at 20℃; for 6 h; Add L-alanine (2.5 g, 27.8 mmol) to a dry flask.Add anhydrous anaerobic methanol (278 mL), stir at 0 ° C for 10 min,Thionyl chloride (0.5 mL) was slowly added thereto, and the reaction was stirred for 6 hours.After the reaction was completed, the solvent was evaporated, diluted with diethyl ether and filtered.L-Alanine methyl ester 13 was obtained as a white solid, 3.36 g.

Reference: [1] Phytochemistry Letters, 2018, vol. 26, p. 50 - 54
[2] Angewandte Chemie - International Edition, 2018, vol. 57, # 36, p. 11683 - 11687[3] Angew. Chem., 2018, vol. 130, # 36, p. 11857 - 11861,5
[4] Journal of Organic Chemistry, 2008, vol. 73, # 7, p. 2898 - 2901
[5] Tetrahedron Asymmetry, 2009, vol. 20, # 9, p. 1036 - 1039
[6] European Journal of Organic Chemistry, 2015, vol. 2015, # 17, p. 3793 - 3805
[7] Journal of the American Chemical Society, 2017, vol. 139, # 40, p. 14077 - 14089
[8] Bioorganic and Medicinal Chemistry, 2017, vol. 25, # 17, p. 4778 - 4799
[9] Organic Preparations and Procedures International, 2002, vol. 34, # 1, p. 87 - 94
[10] Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2006, vol. 45, # 8, p. 1942 - 1944
[11] Journal of the Chemical Society. Perkin Transactions 2, 2000, # 1, p. 69 - 76
[12] Helvetica Chimica Acta, 2007, vol. 90, # 3, p. 562 - 573
[13] European Journal of Organic Chemistry, 2010, # 22, p. 4276 - 4287
[14] Patent: CN105152949, 2017, B, . Location in patent: Paragraph 0045; 0046; 0055; 0056; 0065; 0066
[15] Journal of Organic Chemistry, 1989, vol. 54, # 4, p. 937 - 947
[16] Recueil des Travaux Chimiques des Pays-Bas, 1995, vol. 114, # 4-5, p. 171 - 174
[17] Bulletin des Societes Chimiques Belges, 1991, vol. 100, # 1, p. 63 - 77
[18] Chemical Biology and Drug Design, 2012, vol. 79, # 2, p. 216 - 222
[19] European Journal of Medicinal Chemistry, 2016, vol. 112, p. 196 - 208
[20] Journal of Medicinal Chemistry, 2015, vol. 58, # 15, p. 6293 - 6305
[21] Journal of Organometallic Chemistry, 1986, vol. 317, p. 93 - 104
[22] Tetrahedron Asymmetry, 2000, vol. 11, # 6, p. 1367 - 1374
[23] Synthetic Communications, 2018, vol. 48, # 12, p. 1487 - 1493
[24] Journal of the American Chemical Society, 1990, vol. 112, # 7, p. 2558 - 2566
[25] Journal of Pharmacy and Pharmacology, 1992, vol. 44, # 4, p. 295 - 299
[26] Organic and Biomolecular Chemistry, 2008, vol. 6, # 9, p. 1594 - 1600
[27] Research on Chemical Intermediates, 2013, vol. 39, # 2, p. 621 - 629
[28] ACS Medicinal Chemistry Letters, 2016, vol. 7, # 12, p. 1197 - 1201
[29] Archiv der Pharmazie, 2011, vol. 344, # 8, p. 494 - 504
[30] Synthetic Communications, 2010, vol. 40, # 8, p. 1161 - 1179
[31] Journal of Chemical Research, Miniprint, 1981, # 9, p. 3261 - 3278
[32] European Journal of Inorganic Chemistry, 2012, # 20, p. 3349 - 3360
[33] Journal of the American Chemical Society, 1990, vol. 112, # 5, p. 1956 - 1961
[34] Tetrahedron, 1990, vol. 46, # 15, p. 5325 - 5332
[35] Heterocycles, 1991, vol. 32, # 10, p. 1879 - 1895
[36] Phosphorus and Sulfur and the Related Elements, 1987, vol. 29, p. 373 - 376
[37] Helvetica Chimica Acta, 1988, vol. 71, p. 1999 - 2021
[38] Archiv der Pharmazie, 1992, vol. 325, # 11, p. 709 - 715
[39] Phytochemistry (Elsevier), 1988, vol. 27, # 1, p. 77 - 84
[40] Journal of Physical Chemistry, 1994, vol. 98, # 27, p. 6862 - 6864
[41] Journal of Organometallic Chemistry, 1987, vol. 326, p. 289 - 298
[42] Tetrahedron Letters, 2002, vol. 43, # 21, p. 3935 - 3937
[43] Bioorganic and Medicinal Chemistry Letters, 2005, vol. 15, # 6, p. 1629 - 1632
[44] Tetrahedron Asymmetry, 2002, vol. 13, # 18, p. 2053 - 2059
[45] Canadian Journal of Chemistry, 2005, vol. 83, # 8, p. 1164 - 1170
[46] Chemical Communications, 2005, # 28, p. 3562 - 3564
[47] Tetrahedron, 2007, vol. 63, # 31, p. 7334 - 7348
[48] Patent: EP1903034, 2008, A1, . Location in patent: Page/Page column 7
[49] Chemical Communications, 2006, # 29, p. 3081 - 3083
[50] Tetrahedron, 2009, vol. 65, # 45, p. 9116 - 9124
[51] Bioorganic and Medicinal Chemistry, 2010, vol. 18, # 6, p. 2135 - 2140
[52] Patent: WO2010/122134, 2010, A1, . Location in patent: Page/Page column 65
[53] European Journal of Organic Chemistry, 2008, # 14, p. 2423 - 2429
[54] Synlett, 2009, # 8, p. 1227 - 1232
[55] European Journal of Medicinal Chemistry, 2009, vol. 44, # 7, p. 2796 - 2806
[56] Zeitschrift fur Anorganische und Allgemeine Chemie, 2010, vol. 636, # 1, p. 236 - 241
[57] Journal of Chemical Research, 2011, vol. 35, # 1, p. 47 - 50
[58] Journal of Chemical Research, 2012, vol. 36, # 4, p. 206 - 209
[59] Chemistry - An Asian Journal, 2011, vol. 6, # 1, p. 189 - 197
[60] Letters in Organic Chemistry, 2011, vol. 8, # 3, p. 210 - 215
[61] Asian Journal of Chemistry, 2012, vol. 24, # 3, p. 1227 - 1236
[62] Organic Letters, 2012, vol. 14, # 5, p. 1318 - 1321
[63] Bioorganic and Medicinal Chemistry, 2012, vol. 20, # 12, p. 3807 - 3815
[64] Asian Journal of Chemistry, 2012, vol. 24, # 3, p. 1170 - 1174
[65] Asian Journal of Chemistry, 2012, vol. 24, # 3, p. 1237 - 1241
[66] Biomacromolecules, 2012, vol. 13, # 8, p. 2446 - 2455
[67] Medicinal Chemistry Research, 2012, vol. 21, # 11, p. 3361 - 3368
[68] Asian Journal of Chemistry, 2013, vol. 25, # 3, p. 1749 - 1750
[69] Journal of Heterocyclic Chemistry, 2013, vol. 50, # 5, p. 1067 - 1070
[70] RSC Advances, 2013, vol. 3, # 40, p. 18332 - 18338
[71] Chemical Communications, 2014, vol. 50, # 4, p. 433 - 435
[72] Applied Organometallic Chemistry, 2014, vol. 28, # 7, p. 545 - 551
[73] Organic and Biomolecular Chemistry, 2014, vol. 12, # 41, p. 8318 - 8324
[74] Chemistry--A European Journal, 2014, vol. 20, # 36, p. 11428 - 11438,11
[75] Medicinal Chemistry Research, 2015, vol. 24, # 7, p. 2825 - 2837
[76] European Journal of Medicinal Chemistry, 2016, vol. 108, p. 166 - 176
[77] Journal of Polymer Science, Part A: Polymer Chemistry, 2016, vol. 54, # 8, p. 1065 - 1077
[78] European Journal of Medicinal Chemistry, 2016, vol. 124, p. 637 - 648
[79] Patent: WO2017/36880, 2017, A1, . Location in patent: Paragraph 200
[80] Organic Syntheses, 1988, vol. 66, p. 151 - 151
[81] Journal of Medicinal Chemistry, 2017, vol. 60, # 13, p. 5889 - 5908
[82] Patent: WO2017/129829, 2017, A1, . Location in patent: Page/Page column 31; 32
[83] Russian Chemical Bulletin, 2017, vol. 66, # 1, p. 136 - 142[84] Izv. Akad. Nauk, Ser. Khim., 2017, # 1, p. 136 - 142,6
[85] Bioorganic and Medicinal Chemistry, 2018, vol. 26, # 2, p. 501 - 508
[86] Chemistry - An Asian Journal, 2018, vol. 13, # 4, p. 400 - 403
[87] Patent: CN107880023, 2018, A, . Location in patent: Paragraph 0104; 0105; 0106
[88] Patent: CN108069867, 2018, A, . Location in patent: Paragraph 0015-0017
[89] Patent: CN107827815, 2018, A, . Location in patent: Paragraph 0108; 0109; 0128; 0129; 0148; 0149
[90] Journal of Organometallic Chemistry, 2018, vol. 876, p. 1 - 9
[91] Amino Acids, 2018, vol. 50, # 10, p. 1461 - 1470
[92] Patent: CN108690005, 2018, A, . Location in patent: Paragraph 0036; 0037
  • 4
  • [ 67-56-1 ]
  • [ 6003-05-0 ]
  • [ 2491-20-5 ]
YieldReaction ConditionsOperation in experiment
86% at -10 - 20℃; for 16 h; General procedure: For the synthesis of compounds 2a, 2c–2g, we used slightly modificated known procedure [1]. To a stirred solution of amino acid (32.2mmol) in dry methanol (100mL) was added drop-wise thionyl chloride (64.4mmol). The temperature was kept between−10 and−5°C. After complete addition, the reaction was stirred at RT overnight. After 16h, the solution was evaporated to dryness. The product was diluted with EtOAc and collected by filtration. The residue was dried under reduced pressure to give an amino acid methyl ester hydrochloride as white crystalline powder. The yields were higher in all experiments than 80percent. Melting point and 1H as well as 13C NMR spectra in D2O were used for characterization of the prepared compounds. The data are in good agreement with literature data [20].
Reference: [1] European Journal of Medicinal Chemistry, 2013, vol. 68, p. 253 - 259
[2] Tetrahedron Letters, 1998, vol. 39, # 47, p. 8563 - 8566
  • 5
  • [ 56-41-7 ]
  • [ 2491-20-5 ]
Reference: [1] Tetrahedron, 1988, vol. 44, # 6, p. 1685 - 1690
[2] Patent: US5496927, 1996, A,
[3] Patent: US5113009, 1992, A,
[4] Patent: US2006/287500, 2006, A1, . Location in patent: Page/Page column 2; 3
  • 6
  • [ 56-41-7 ]
  • [ 77-76-9 ]
  • [ 2491-20-5 ]
Reference: [1] Organic Letters, 2008, vol. 10, # 7, p. 1469 - 1472
[2] Tetrahedron Asymmetry, 2008, vol. 19, # 1, p. 67 - 81
  • 7
  • [ 28875-17-4 ]
  • [ 2491-20-5 ]
Reference: [1] Bulletin of the Chemical Society of Japan, 1994, vol. 67, # 9, p. 2478 - 2486
  • 8
  • [ 67-56-1 ]
  • [ 15761-38-3 ]
  • [ 2491-20-5 ]
Reference: [1] Journal of Organic Chemistry, 1999, vol. 64, # 25, p. 9294 - 9296
  • 9
  • [ 13515-97-4 ]
  • [ 2491-20-5 ]
  • [ 14316-06-4 ]
Reference: [1] Patent: WO2010/148191, 2010, A2, . Location in patent: Page/Page column 45-49; 60
  • 10
  • [ 67-56-1 ]
  • [ 16948-16-6 ]
  • [ 2491-20-5 ]
Reference: [1] Chemistry - A European Journal, 2013, vol. 19, # 32, p. 10619 - 10624
  • 11
  • [ 13165-72-5 ]
  • [ 56-41-7 ]
  • [ 2491-20-5 ]
Reference: [1] Chemistry and Biodiversity, 2018, vol. 15, # 5,
  • 12
  • [ 56-41-7 ]
  • [ 75-36-5 ]
  • [ 2491-20-5 ]
Reference: [1] European Journal of Organic Chemistry, 2013, # 26, p. 5838 - 5847
  • 13
  • [ 10065-72-2 ]
  • [ 2491-20-5 ]
Reference: [1] Synlett, 2009, # 17, p. 2803 - 2808
  • 14
  • [ 28819-05-8 ]
  • [ 2491-20-5 ]
Reference: [1] Synthesis, 2011, # 20, p. 3247 - 3254
  • 15
  • [ 56-41-7 ]
  • [ 74-88-4 ]
  • [ 2491-20-5 ]
Reference: [1] Bulletin of the Chemical Society of Japan, 2004, vol. 77, # 6, p. 1187 - 1193
  • 16
  • [ 912290-10-9 ]
  • [ 2491-20-5 ]
  • [ 14316-06-4 ]
Reference: [1] Tetrahedron, 1988, vol. 44, # 17, p. 5495 - 5506
  • 17
  • [ 28875-17-4 ]
  • [ 75-36-5 ]
  • [ 2491-20-5 ]
Reference: [1] Chemistry - A European Journal, 2009, vol. 15, # 22, p. 5552 - 5566
  • 18
  • [ 15761-38-3 ]
  • [ 124-41-4 ]
  • [ 2491-20-5 ]
Reference: [1] Amino Acids, 2012, vol. 43, # 4, p. 1779 - 1790
  • 19
  • [ 67-56-1 ]
  • [ 129178-93-4 ]
  • [ 2491-20-5 ]
Reference: [1] Journal of Physical Organic Chemistry, 2004, vol. 17, # 5, p. 448 - 457
  • 20
  • [ 83575-33-1 ]
  • [ 2491-20-5 ]
Reference: [1] Tetrahedron Letters, 1984, vol. 25, # 22, p. 2355 - 2358
[2] Tetrahedron Letters, 1984, vol. 25, # 22, p. 2355 - 2358
  • 21
  • [ 13515-97-4 ]
  • [ 2491-20-5 ]
  • [ 14316-06-4 ]
Reference: [1] Patent: WO2010/148191, 2010, A2, . Location in patent: Page/Page column 45-49; 60
  • 22
  • [ 912290-10-9 ]
  • [ 2491-20-5 ]
  • [ 14316-06-4 ]
Reference: [1] Tetrahedron, 1988, vol. 44, # 17, p. 5495 - 5506
  • 23
  • [ 2491-20-5 ]
  • [ 33208-99-0 ]
YieldReaction ConditionsOperation in experiment
85 g
Stage #1: at 20℃; for 20 h; Sealed tube; Large scale
Stage #2: With hydrogenchloride In waterLarge scale
500g of methanol, L-Alanine of 100g were placed in a 1000ml of three necked flask, then 90ml of Thionyl chloride was added dropswise (T≤35°C). After the addition was completed, the three-necked flask was transferred to a water bath and the temperature was raised to reflux (T≤35°C),and fully removed SO2. In the ice bath(T≤20°C), ammonolysis was performed on 0.56 kg of ammonia, and seal in a water bath at room temperature overnight (20 hours). The water bath was warmed to Τ=55°C to remove ammonia cocentration, the final concentration volume was 300 ml and removal of ammonia concentration was complete. The excess ammonium chloride was filtered, rinsed with 100 ml of methanol, rinsed liquid combined with the mother liquor and transferred to a 1000 ml beaker. 34.5 ml of hydrochloric acid (10percent concentration) was slowly added dropwise to adjust the pH to 1.55 and the acid adjustment was completed. After being sealed in a refrigerator and refrigerating for 12 hours, after taking out, 400 ml of acetone was added, and crystals were precipitated. After suction filtration, rinsing, and drying at 45° C for 12 hours, 85 g of white crystals were obtained (yield was 85percent).See the test results [a] =+11.4°
Reference: [1] Journal fur Praktische Chemie - Chemiker - Zeitung, 1996, vol. 338, # 3, p. 251 - 256
[2] Patent: CN108069867, 2018, A, . Location in patent: Paragraph 0015-0017
  • 24
  • [ 2491-20-5 ]
  • [ 100-58-3 ]
  • [ 78603-91-5 ]
Reference: [1] Applied Organometallic Chemistry, 2014, vol. 28, # 7, p. 545 - 551
  • 25
  • [ 100-59-4 ]
  • [ 2491-20-5 ]
  • [ 78603-91-5 ]
Reference: [1] Journal of the Chemical Society. Perkin Transactions 2, 2000, # 1, p. 69 - 76
  • 26
  • [ 2491-20-5 ]
  • [ 78603-91-5 ]
Reference: [1] Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1985, p. 2039 - 2044
  • 27
  • [ 108-86-1 ]
  • [ 2491-20-5 ]
  • [ 78603-91-5 ]
Reference: [1] Chemische Berichte, 1993, vol. 126, # 11, p. 2449 - 2456
  • 28
  • [ 2491-20-5 ]
  • [ 74-89-5 ]
  • [ 61275-22-7 ]
Reference: [1] Angewandte Chemie - International Edition, 2018, vol. 57, # 36, p. 11683 - 11687[2] Angew. Chem., 2018, vol. 130, # 36, p. 11857 - 11861,5
[3] Organic Syntheses, 2011, vol. 88, p. 42 - 53
[4] Organic and Biomolecular Chemistry, 2017, vol. 15, # 6, p. 1355 - 1362
  • 29
  • [ 28920-43-6 ]
  • [ 2491-20-5 ]
  • [ 146346-88-5 ]
Reference: [1] Journal of Organic Chemistry, 2014, vol. 79, # 9, p. 4008 - 4017
[2] Journal of the American Chemical Society, 2013, vol. 135, # 9, p. 3359 - 3362
Historical Records

Related Functional Groups of
[ 2491-20-5 ]

Amino Acid Derivatives

Chemical Structure| 617-27-6

[ 617-27-6 ]

Ethyl 2-aminopropanoate hydrochloride

Similarity: 0.93

Chemical Structure| 5619-04-5

[ 5619-04-5 ]

H-DL-Ser-OMe.HCl

Similarity: 0.93

Chemical Structure| 6331-09-5

[ 6331-09-5 ]

D-Alanine ethyl ester hydrochloride

Similarity: 0.93

Chemical Structure| 1800300-79-1

[ 1800300-79-1 ]

(R)-Methyl 2-amino-3-methoxypropanoate hydrochloride

Similarity: 0.93

Chemical Structure| 1115-59-9

[ 1115-59-9 ]

H-Ala-OEt.HCl

Similarity: 0.93