287815

3,4-Dichloroisocoumarin

• Synonym(s): 3,4-Dichloroisocoumarin
• Empirical Formula (Hill Notation): C₉H₄Cl₂O₂
• CAS Number: 51050-59-0
• Molecular Weight: 215.03
• MDL number: MFCD00036960
• UNSPSC Code: 12352200
• NACRES: NA.77

Properties

• assay: ≥99% (elemental analysis)
• Quality Level: 100
• form: lyophilized solid
• potency: 5-100 μM IC₅₀
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated
• color: white
• solubility: DMF: 10 mM; DMSO: 10 mM
• shipped in: ambient
• storage temp.: 2-8°C
• InChI: 1S/C9H4Cl2O2/c10-7-5-3-1-2-4-6(5)9(12)13-8(7)11/h1-4H
• InChI key: SUGXUUGGLDCZKB-UHFFFAOYSA-N

Description

General description

A potent irreversible inhibitor of serine proteases. Blocks apoptotic internucleosomal DNA cleavage in thymocytes without the involvement of endonucleases. Reacts with serine proteases to release an acylchloride moiety that can acylate another active site residue. Does not affect thiol proteases and metalloproteases. Also has no activity towards β-lactamases. Effective at concentrations ranging from 5-100 µM.

A potent, irreversible inhibitor of serine proteases. Reacts with serine proteases to release an acylchloride moiety that can acylate another active site residue. Inhibits granzyme B and blocks apoptotic internucleosomal DNA cleavage in thymocytes without the involvement of endonucleases. Does not affect thiol proteases and metalloproteases. Does not exhibit any activity towards β-lactamases.

Effective concentration: 5-100 µM; t_½ = 20 min at pH 7.5.

Biochem/physiol Actions

Cell permeable: no

Primary Target
serine proteases

Product does not compete with ATP.

Reversible: no

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Cain, K., et al. 1994. Biochem. Cell Biol.72, 631.
Weaver, V.M., et al. 1993. Biochem. Cell Biol. 71, 488.
Odake, S., et al. 1991. Biochemistry 30, 2217.
Harper, J.W., et al. 1985. Biochemistry24, 1831.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS06
• signalword: Danger
• hcodes: H301,H315,H319,H335
• pcodes: P261 - P264 - P270 - P301 + P310 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable