[ CAS No. 74545-26-9 ] {[proInfo.proName]}

Name: 74545-26-9|5,6-Dibromo-1H-benzo[d]imidazole|97%
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Quality Control of [ 74545-26-9 ]

COA NMR CNMR HPLC LC-MS

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SDS Specification

Alternatived Products of [ 74545-26-9 ]

Product Details of [ 74545-26-9 ]

CAS No. :	74545-26-9	MDL No. :	MFCD00795592
Formula :	C₇H₄Br₂N₂	Boiling Point :	-
Linear Structure Formula :	-	InChI Key :	MJVDZXWFJQYHIU-UHFFFAOYSA-N
M.W :	275.93	Pubchem ID :	3522215
Synonyms :

Safety of [ 74545-26-9 ]

Signal Word:	Warning	Class:	N/A
Precautionary Statements:	P261-P305+P351+P338	UN#:	N/A
Hazard Statements:	H302-H315-H319-H335	Packing Group:	N/A
GHS Pictogram:

Application In Synthesis of [ 74545-26-9 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

Upstream synthesis route of [ 74545-26-9 ]
Downstream synthetic route of [ 74545-26-9 ]

[ 74545-26-9 ] Synthesis Path-Upstream 1~1

1
[ 64-18-6 ]
[ 49764-63-8 ]
[ 74545-26-9 ]

Reference： [1] Zeitschrift fuer Naturforschung, 1951, vol. 6b, p. 25,33

[ 74545-26-9 ] Synthesis Path-Downstream 1~2

1
[ 64-18-6 ]
[ 49764-63-8 ]
[ 74545-26-9 ]

Reference： [1]Zeitschrift fur Naturforschung,1951,vol. 6b,p. 25,33

2
[ 74545-26-9 ]
[ 456-04-2 ]
2‑(5,6‑dibromo‑1H‑benzimidazol‑1‑yl)‑1‑(4‑fluorophenyl)ethanone [ No CAS ]

Yield	Reaction Conditions	Operation in experiment
81%	With potassium carbonate In acetonitrile for 24h;	4.1.1. Synthesis of 4a-d and 5a-d General procedure: To a stirred suspension of 5,6-dibromobenzimidazole 1 or 4,6-dibromobenzimidazole2 (1 mmol, 0.276 g) in MeCN (20 mL) K2CO3 (4 mmol, 0.553 g) followed by 3a-d (1mmol) was added. The reaction was carried out at room temperature (20-22 °C) for 24 h.After this time the solid products were filtered, washed out with MeCN (25 mL), evaporated.The residue was purified by column chromatography (silica gel/CHCl3, eluentCHCl3). Analytical sample was crystallized (EtOH).
73%	With potassium carbonate In acetonitrile at 19.99 - 21.99℃; for 22h;	2.3.2 2-(5,6-Dibromo-1H-Benzimidazol-1-yl)-1-(4-Fluorophenyl)Ethanone (DB2) To the stirred mixture of 5,6-dibromobenzimidazole (2 mmol, 552 mg), MeCN (40 ml)and K2CO3(8 mmol, 1.11 g) 2-chloro-4′-fluoroacetophenone (2 mmol, 345 mg) wasadded. The reaction was carried out at 293.15-295.15 K for 22 h, next solid productswere filtered and washed with CH2Cl2(5 × 6 ml) and evaporated. The residue was purifiedby column chromatography on silica gel (eluent: CHCl3/MeOH 100: 0 to 100: 5,TLC CHCl3/MeOH 95: 5) and then crystallized (EtOH). Yield 73%.

Reference： [1]Staniszewska, Monika; Kuryk, Łukasz; Gryciuk, Aleksander; Kawalec, Joanna; Rogalska, Marta; Baran, Joanna; Kowalkowska, Anna [Molecules, 2021, vol. 26, # 18]
[2]Śliwińska, Agnieszka; Pobudkowska, Aneta; Kowalkowska, Anna [Journal of Solution Chemistry, 2022, vol. 51, # 5, p. 556 - 576]

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[ 74545-26-9 ]

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Application In Synthesis of [ 74545-26-9 ]

Ghs Precautionary Statements

Precautionary Statements-General
Code	Phrase
P101	If medical advice is needed,have product container or label at hand.
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Prevention
Code	Phrase
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P221	Take any precaution to avoid mixing with combustibles
P222	Do not allow contact with air.
P223	Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P230	Keep wetted
P231	Handle under inert gas.
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P233	Keep container tightly closed.
P234	Keep only in original container.
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Code	Phrase
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P320
P302 + P352	IF ON SKIN: wash with plenty of soap and water.
P321
P322
P330	Rinse mouth.
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P378
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P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P301 + P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P301 + P330 + P331	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P334	IF ON SKIN: Immerse in cool water/wrap in wet bandages.
P302 + P350	IF ON SKIN: Gently wash with plenty of soap and water.
P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304 + P312	IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P304 + P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304 + P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P306 + P360	IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.
P307 + P311	IF exposed: call a POISON CENTER or doctor/physician.
P308 + P313	IF exposed or concerned: Get medical advice/attention.
P309 + P311	IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician.
P332 + P313	IF SKIN irritation occurs: Get medical advice/attention.
P333 + P313	IF SKIN irritation or rash occurs: Get medical advice/attention.
P335 + P334	Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P337 + P313	IF eye irritation persists: Get medical advice/attention.
P342 + P311	IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P370 + P376	In case of fire: Stop leak if safe to Do so.
P370 + P378	In case of fire:
P370 + P380	In case of fire: Evacuate area.
P370 + P380 + P375	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
P371 + P380 + P375	In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
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P401
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P411
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P413
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P422
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P403 + P233	Store in a well-ventilated place. Keep container tightly closed.
P403 + P235	Store in a well-ventilated place. Keep cool.
P410 + P403	Protect from sunlight. Store in a well-ventilated place.
P410 + P412	Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF.
P411 + P235	Keep cool.
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P501	Dispose of contents/container to ...
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Ghs Hazard Statements

Physical hazards
Code	Phrase
H200	Unstable explosive
H201	Explosive; mass explosion hazard
H202	Explosive; severe projection hazard
H203	Explosive; fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable aerosol
H223	Flammable aerosol
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating; may catch fire
H252	Self-heating in large quantities; may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire; oxidizer
H271	May cause fire or explosion; strong oxidizer
H272	May intensify fire; oxidizer
H280	Contains gas under pressure; may explode if heated
H281	Contains refrigerated gas; may cause cryogenic burns or injury
H290	May be corrosive to metals
Health hazards
Code	Phrase
H300	Fatal if swallowed
H301	Toxic if swallowed
H302	Harmful if swallowed
H303	May be harmful if swallowed
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H311	Toxic in contact with skin
H312	Harmful in contact with skin
H313	May be harmful in contact with skin
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
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H351	Suspected of causing cancer
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H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
Environmental hazards
Code	Phrase
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long-lasting effects
H411	Toxic to aquatic life with long-lasting effects
H412	Harmful to aquatic life with long-lasting effects
H413	May cause long-lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere

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[ CAS No. 74545-26-9 ] {[proInfo.proName]}

Quality Control of [ 74545-26-9 ]

Related Doc. of [ 74545-26-9 ]

Product Details of [ 74545-26-9 ]

Safety of [ 74545-26-9 ]

Application In Synthesis of [ 74545-26-9 ]

[ 74545-26-9 ] Synthesis Path-Upstream 1~1

[ 74545-26-9 ] Synthesis Path-Downstream 1~2

Related Functional Groups of [ 74545-26-9 ]

Bromides

Related Parent Nucleus of [ 74545-26-9 ]

Benzimidazoles

Precautionary Statements-General

Prevention

Response

Storage

Disposal

Physical hazards

Health hazards

Environmental hazards

Inquiry

Related Functional Groups of
[ 74545-26-9 ]

Related Parent Nucleus of
[ 74545-26-9 ]