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Merck
CN

C188

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
UNSPSC Code:
12161501
PubChem Substance ID:
MDL number:
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InChI

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

SMILES string

Oc1cc2OC(=O)Nc2cc1Cl

InChI key

AGLXDWOTVQZHIQ-UHFFFAOYSA-N

form

solid

solubility

H2O: insoluble, ethanol: moderately soluble

Application

CYP2E1 & 1A2 metabolite of chlorzoxazone.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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
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
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
Thomas D Nolin et al.
Clinical pharmacology and therapeutics, 74(6), 555-568 (2003-12-10)
The purposes of this study were (1) to describe the disposition of chlorzoxazone and 6-hydroxychlorzoxazone in patients with kidney disease, (2) to develop a population pharmacokinetic model including covariates that may influence the pharmacokinetic variability of both compounds, and (3)

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