WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 406364

CAS#: 1230628-71-3

Description: ML132, also known as CID-4462093 or NCGC-00183434, is the most potent caspase 1 inhibitor reported to date. It also possesses a unique selectivity pattern relative to other reported caspase inhibitors.

Chemical Structure

CAS# 1230628-71-3

Theoretical Analysis

MedKoo Cat#: 406364
Name: ML-132
CAS#: 1230628-71-3
Chemical Formula: C22H28ClN5O5
Exact Mass: 477.1779
Molecular Weight: 477.94122
Elemental Analysis: C, 55.29; H, 5.90; Cl, 7.42; N, 14.65; O, 16.74

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Pricing updated 2021-03-02. Prices are subject to change without notice.

ML-132 is not in stock, but may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Synonym: ML132; ML 132; ML-132; CID-4462093; CID4462093;CID 4462093; NCGC00183434; NCGC 00183434; NCGC-00183434.

IUPAC/Chemical Name: (S)-3-((S)-1-((S)-2-(4-amino-3-chlorobenzamido)-3,3-dimethylbutanoyl)pyrrolidine-2-carboxamido)-3-cyanopropanoic acid


InChi Code: InChI=1S/C22H28ClN5O5/c1-22(2,3)18(27-19(31)12-6-7-15(25)14(23)9-12)21(33)28-8-4-5-16(28)20(32)26-13(11-24)10-17(29)30/h6-7,9,13,16,18H,4-5,8,10,25H2,1-3H3,(H,26,32)(H,27,31)(H,29,30)/t13-,16-,18+/m0/s1

SMILES Code: O=C(O)C[C@H](NC([C@H]1N(C([C@@H](NC(C2=CC=C(N)C(Cl)=C2)=O)C(C)(C)C)=O)CCC1)=O)C#N

white solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 477.94122 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Boxer MB, Shen M, Auld DS, Wells JA, Thomas CJ. A small molecule inhibitor of  Caspase 1. 2010 Feb 25 [updated 2011 Mar 3]. Probe Reports from the NIH Molecular Libraries Program [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2010-. Available from PMID: 21735610. or


10mg / Not available

Additional Information