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Key Documents

Safety Information

C188

Sigma-Aldrich

6-Hydroxychlorzoxazone

solid

Synonym(s):

5-Chloro-6-hydroxy-2(3H)-benzoxazolone, 5-Chloro-6-hydroxybenzoxazone

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About This Item

Empirical Formula (Hill Notation):
C7H4ClNO3
CAS Number:
Molecular Weight:
185.56
MDL number:
UNSPSC Code:
12161501
PubChem Substance ID:

form

solid

solubility

H2O: insoluble
ethanol: moderately soluble

SMILES string

Oc1cc2OC(=O)Nc2cc1Cl

InChI

1S/C7H4ClNO3/c8-3-1-4-6(2-5(3)10)12-7(11)9-4/h1-2,10H,(H,9,11)

InChI key

AGLXDWOTVQZHIQ-UHFFFAOYSA-N

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Application

CYP2E1 & 1A2 metabolite of chlorzoxazone.

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Description
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Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Ko-Hsiu Lu et al.
Molecules (Basel, Switzerland), 26(1) (2020-12-31)
Osteosarcoma, the most prevalent malignant bone tumor in the pediatric age group, is responsible for the great majority of cancer-associated deaths owing to its highly metastatic potential. The anti-metastatic effects of the new curcumin analogue L48H37 in human osteosarcoma are
M Reza Anari et al.
Analytical chemistry, 75(3), 469-478 (2003-02-15)
The application of liquid chromatography tandem mass spectrometry for simultaneous analysis of major human cytochrome P450 activities via a single atmospheric pressure ionization (API) LC/MS/MS method has been hampered by the preferred detection of 6-hydroxychlorzoxazone (HCZ), the metabolite of the
Won- Suk Chung et al.
Life sciences, 73(3), 253-263 (2003-05-22)
It has been reported from our laboratories that expression of CYP2E1 significantly increased and decreased in rats with acute renal failure induced by uranyl nitrate (U-ARF) treated with recombinant human growth hormone (rGH) for one day (U-ARF1) compared with those
P Piccoli et al.
Toxicology letters, 192(1), 29-33 (2009-11-11)
Assessing CYP2E1 phenotype in vivo may be important to predict individual susceptibility to those chemicals, including benzene, which are metabolically activated by this isoenzyme. Chlorzoxazone (CHZ), a specific CYP2E1 substrate, is readily hydroxylated to 6-OH-chlorzoxazone (6-OH-CHZ) by liver CYP2E1 and
Anna M Lee et al.
European journal of pharmacology, 552(1-3), 151-158 (2006-10-20)
Cytochrome P450 2E1 (CYP2E1) is expressed in the brain and liver, and can metabolize clinical drugs and activate toxins. The effect of phenobarbital on hepatic and brain CYP2E1 is unclear. We investigated the effect of chronic phenobarbital treatment on in

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