CAS No. :	88191-84-8
Formula :	C₂₂H₂₆N₂O₄
M.W :	382.45
SMILES Code :	O=C(OCC1=CC=CC=C1)N[C@@H](C(C)C)C(NC(CC2=CC=CC=C2)C=O)=O
Synonyms :	Calpain Inhibitor III
MDL No. :	MFCD28137700

GHS Pictogram:
Signal Word:	Warning
Hazard Statements:	H302-H315-H319-H335
Precautionary Statements:	P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Control fibroblasts	100 µM	1-hour pretreatment followed by 8 min hoursypotonic stress	MDL-28170 partially attenuated vimentin cleavage induced by hypotonic stress but did not eliminate it. MG-132 nearly completely inhibited vimentin cleavage.	Front Cell Dev Biol. 2022 Nov 1;10:1008542.
GAN patient-derived fibroblasts	100 µM	1-hour pretreatment followed by 8 min hoursypotonic stress	MDL-28170 partially attenuated vimentin cleavage induced by hypotonic stress but did not eliminate it. MG-132 (calpain/proteasome inhibitor) nearly completely inhibited vimentin cleavage.	Front Cell Dev Biol. 2022 Nov 1;10:1008542.
Huh-7-ACE2 cells	2.5 µM	24 hours	To validate the antiviral activity of MDL-28170 in human cell lines	Nature. 2020 Oct;586(7827):113-119.
Pulmonary artery smooth muscle cells (PASMCs)	10 µM	24 hours	MDL-28170 treatment showed protective effects on hypoxia-induced inflammation, fibrosis, and cell proliferation, which may be associated with the downregulation of calpain-1 and p-STAT3 expression in mice and cells.	J Ginseng Res. 2024 Jul;48(4):405-416.
Leishmania amazonensis promastigotes	15, 20, 25, 30 µM	24, 48, 72, 96 hours	To evaluate the effect of MDL-28170 on the growth rate of L. amazonensis. Results showed that MDL-28170 inhibited parasite growth in a dose-dependent manner, with an LD50 of 23.3 µM at 48 hours. At 30 µM, growth inhibition reached 90% after 48 hours.	Int J Antimicrob Agents. 2006 Aug;28(2):138-42.
IPSC-derived pneumocyte-like cells	5 µM	48 hours	To evaluate the antiviral activity of MDL-28170 in human primary cell models	Nature. 2020 Oct;586(7827):113-119.
Vero E6 cells	5 µM	72 hours	To evaluate the inhibitory effect of MDL-28170 on SARS-CoV-2 replication	Nature. 2020 Oct;586(7827):113-119.
HEK293 cells	20 µM		MDL-28170, as a reversible calpain inhibitor, preferentially affected rCAPN1 over rCAPN14 activity.	JCI Insight. 2016 Apr;1(4):e86355.

Sprague-Dawley rats	Cancer-induced bone pain model	Intraperitoneal injection	1 mg/kg	Daily administration until postoperative day 14	To evaluate the effect of MDL-28170 on mechanical withdrawal thresholds in a rat cancer-induced bone pain model. Results showed that MDL-28170 significantly increased the mechanical withdrawal thresholds of both surgical and nonsurgical hind paws and reduced TRAP-positive cell counts.	Chin Med J (Engl). 2015 Apr 20;128(8):1102-7
Pigs	Right ventricular pressure overload model	Infusion into the right coronary artery	10 µM	Continued for 4 hours	MDL-28170 attenuated the severity of right ventricular contractile dysfunction and preserved talin abundance in the RV free wall.	Am J Respir Cell Mol Biol. 2012 Sep;47(3):379-86
Mice	Wild-type (WT), junctin-knockout (JKO), and triadin-knockout (TKO) mice	Perfusion buffer	10 μM	Administered 5 min prior to ischemia and continued for 5 min after reperfusion	MDL-28170 significantly improved the recovery of contractile function post-I/R in WT, JKO, and TKO hearts, reduced myocardial infarct size and cTnI degradation	Cardiovasc Res. 2012 May 1;94(2):333-41
Pigs	Right ventricular pressure overload model	Infusion into the right coronary artery	10 μM per liter	Continued for 4 hours	MDL-28170 attenuated the severity of right ventricular contractile dysfunction and preserved talin abundance in the RV free wall.	Am J Respir Cell Mol Biol. 2012 Sep;47(3):379-86
Pigs	Acute right ventricular pressure overload model	Intracoronary infusion	10 μM per liter	Continuous infusion for 90 minutes	MDL-28170 significantly attenuated right ventricular contractile dysfunction caused by acute right ventricular pressure overload	J Mol Cell Cardiol. 2008 Jan;44(1):59-68
Mice	Endotoxin-induced diaphragmatic dysfunction model	Intraperitoneal injection	12 mg/kg	Single dose, evaluated after 24 hours	To evaluate the effect of calpain inhibitor III on endotoxin-induced diaphragmatic dysfunction. Results showed that calpain inhibitor III prevented endotoxin-induced increases in calpain activity, reduced talin degradation, and attenuated diaphragm force reduction.	Am J Respir Cell Mol Biol. 2010 Jan;42(1):80-7
C57BL/6 mice	Postoperative cognitive dysfunction (POCD) model	Intraperitoneal injection	20 mg/kg	Once before surgery and once daily for 5 consecutive days after surgery	MDL-28170 treatment reversed anesthesia and surgery-induced truncation of TrkB-FL, BDNF/TrkB signaling dysregulation, dendritic spine loss, and cell apoptosis, and improved cognitive impairments in aging mice.	J Neuroinflammation. 2020 Jan 16;17(1):23
Mice	Podocyte-specific Gak knockout mice	Intraperitoneal injection	20 mg/kg/day	Daily starting from 2 weeks of age	Inhibit calpain-1/-2 activities, reduce proteinuria and glomerulosclerosis	JCI Insight. 2020 Nov 19;5(22):e142740
Mice	Gak knockout mice	Intraperitoneal injection	20 mg/kg/day	Once daily, starting from 2 weeks of age	Inhibited calpain-1 and -2 activities, mitigated proteinuria and glomerulosclerosis, and significantly increased survival	JCI Insight. 2020 Nov 19;5(22):e142740
Sprague Dawley rats	Epilepsy model	Intraperitoneal injection	50 mg/kg	Low-dose treatment: two acute injections at 1 and 5 h after SE onset with a final dose the following morning; High-dose treatment: four acute doses at 1, 3, 5 and 9 h after SE onset with a final dose the following morning.	To evaluate the effects of MDL-28170 on seizure burden. Results showed that low-dose treatment significantly reduced seizure frequency and was correlated with a reduction in tissue inflammation and cell sprouting.	Neurobiol Dis. 2017 Jun;102:1-10
Mice	Mth1/Ogg1-DKO mice	Intraperitoneal injection	50 mg/kg/day	Once daily for 7 days	MDL28170 significantly improved 3-NP-induced motor impairments and suppressed MSN loss and microgliosis.	J Clin Invest. 2012 Dec;122(12):4344-61
Sprague-Dawley (SD) rats	Traumatic brain injury (TBI) model	Intracranial injection	50 mM	Single dose, assessed after 30 minutes	MDL28170 improved the post-TBI microenvironment by inhibiting inflammation and apoptosis, enhanced the survival of transplanted BMSCs, and significantly improved neurological function.	Stem Cell Res Ther. 2019 Mar 15;10(1):96

Bio Calculators
Preparing Stock Solutions		1mg	5mg	10mg
Preparing Stock Solutions	1 mM 5 mM 10 mM	2.61mL 0.52mL 0.26mL	13.07mL 2.61mL 1.31mL	26.15mL 5.23mL 2.61mL
Dissolving Methods	Animal experiment Please choose the appropriate dissolution scheme according to your animal administration guide.For the following dissolution schemes, clear stock solution should be prepared according to in vitro experiments, and then cosolvent should be added in turn: in order to ensure the reliability of the experimental results, the clarified stock solution can be properly preserved according to the storage conditions; The working fluid for in vivo experiment is recommended to be prepared now and used on the same day; The percentage shown in front of the following solvent refers to the volume ratio of the solvent in the final solution; If precipitation or precipitation occurs in the preparation process, it can be assisted by heating and/or ultrasound. Protocol 1 Protocol 2

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CAS No.: 88191-84-8

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CAS No.: 88191-84-8

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Precautionary Statements-General
Code	Phrase
P101	If medical advice is needed,have product container or label at hand.
P102	Keep out of reach of children.
P103	Read label before use
Prevention
Code	Phrase
P201	Obtain special instructions before use.
P202	Do not handle until all safety precautions have been read and understood.
P210	Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
P211	Do not spray on an open flame or other ignition source.
P220	Keep/Store away from clothing/combustible materials.
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.
P232	Protect from moisture.
P233	Keep container tightly closed.
P234	Keep only in original container.
P235	Keep cool
P240	Ground/bond container and receiving equipment.
P241	Use explosion-proof electrical/ventilating/lighting/equipment.
P242	Use only non-sparking tools.
P243	Take precautionary measures against static discharge.
P244	Keep reduction valves free from grease and oil.
P250	Do not subject to grinding/shock/friction.
P251	Pressurized container: Do not pierce or burn, even after use.
P260	Do not breathe dust/fume/gas/mist/vapours/spray.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy/while nursing.
P264	Wash hands thoroughly after handling.
P265	Wash skin thouroughly after handling.
P270	Do not eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P272	Contaminated work clothing should not be allowed out of the workplace.
P273	Avoid release to the environment.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P281	Use personal protective equipment as required.
P282	Wear cold insulating gloves/face shield/eye protection.
P283	Wear fire/flame resistant/retardant clothing.
P284	Wear respiratory protection.
P285	In case of inadequate ventilation wear respiratory protection.
P231 + P232	Handle under inert gas. Protect from moisture.
P235 + P410	Keep cool. Protect from sunlight.
Response
Code	Phrase
P301	IF SWALLOWED:
P304	IF INHALED:
P305	IF IN EYES:
P306	IF ON CLOTHING:
P307	IF exposed:
P308	IF exposed or concerned:
P309	IF exposed or if you feel unwell:
P310	Immediately call a POISON CENTER or doctor/physician.
P311	Call a POISON CENTER or doctor/physician.
P312	Call a POISON CENTER or doctor/physician if you feel unwell.
P313	Get medical advice/attention.
P314	Get medical advice/attention if you feel unwell.
P315	Get immediate medical advice/attention.
P320
P302 + P352	IF ON SKIN: wash with plenty of soap and water.
P321
P322
P330	Rinse mouth.
P331	Do NOT induce vomiting.
P332	IF SKIN irritation occurs:
P333	If skin irritation or rash occurs:
P334	Immerse in cool water/wrap n wet bandages.
P335	Brush off loose particles from skin.
P336	Thaw frosted parts with lukewarm water. Do not rub affected area.
P337	If eye irritation persists:
P338	Remove contact lenses, if present and easy to do. Continue rinsing.
P340	Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P341	If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342	If experiencing respiratory symptoms:
P350	Gently wash with plenty of soap and water.
P351	Rinse cautiously with water for several minutes.
P352	Wash with plenty of soap and water.
P353	Rinse skin with water/shower.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P361	Remove/Take off immediately all contaminated clothing.
P362	Take off contaminated clothing and wash before reuse.
P363	Wash contaminated clothing before reuse.
P370	In case of fire:
P371	In case of major fire and large quantities:
P372	Explosion risk in case of fire.
P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P376	Stop leak if safe to do so. Oxidising gases (section 2.4) 1
P377	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P378
P380	Evacuate area.
P381	Eliminate all ignition sources if safe to do so.
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.
Storage
Code	Phrase
P401
P402	Store in a dry place.
P403	Store in a well-ventilated place.
P404	Store in a closed container.
P405	Store locked up.
P406	Store in corrosive resistant/ container with a resistant inner liner.
P407	Maintain air gap between stacks/pallets.
P410	Protect from sunlight.
P411
P412	Do not expose to temperatures exceeding 50 oC/ 122 oF.
P413
P420	Store away from other materials.
P422
P402 + P404	Store in a dry place. Store in a closed container.
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.
Disposal
Code	Phrase
P501	Dispose of contents/container to ...
P502	Refer to manufacturer/supplier for information on recovery/recycling

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