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Merck
CN

UC431

4-Hydroxymidazolam

≥97% (HPLC), solid

Synonym(s):

8-Chloro-6-(2-fluorophenyl)-4-hydroxy-4H-imidazo[1,5a][1,4]bezodiazepine

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About This Item

Empirical Formula (Hill Notation):
C18H13ClFN3O
CAS Number:
Molecular Weight:
341.77
UNSPSC Code:
12161501
PubChem Substance ID:
NACRES:
NA.77
MDL number:
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Product Name

4-Hydroxymidazolam,

form

solid

SMILES string

FC(C=CC=C1)=C1C2=NC(O)C3=CN=C(C)N3C4=C2C=C(Cl)C=C4

InChI key

ZYISITHKPKHPKG-UHFFFAOYSA-N

InChI

1S/C18H13ClFN3O/c1-10-21-9-16-18(24)22-17(12-4-2-3-5-14(12)20)13-8-11(19)6-7-15(13)23(10)16/h2-9,18,24H,1H3

drug control

regulated under CDSA - not available from Sigma-Aldrich Canada

color

white to off-white

mp

186-187 °C

storage temp.

2-8°C

Application

4′-Hydroxymidazolam can be used in cell biology studies. It can also be used for studying cell signaling and neuroscience.

Biochem/physiol Actions

4′-Hydroxymidazolam is the minor hydroxylated metabolite of Midazolam (MDZ). The product contributes in the pharmacological impact of MDZ.
CYP3A4 metabolite of midazolam.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Skull and crossbones

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 3 Oral

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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V Mastey et al.
Journal of chromatography. B, Biomedical applications, 655(2), 305-310 (1994-05-13)
A high-performance liquid chromatographic assay coupled with UV detection (254 nm) has been developed for the determination of midazolam and two of its hydroxylated metabolites, 1-hydroxymidazolam (1-OH) and 4-hydroxymidazolam (4-OH), in human plasma. Following a novel solid-phase extraction procedure, midazolam
Camille P Granvil et al.
Drug metabolism and disposition: the biological fate of chemicals, 31(5), 548-558 (2003-04-16)
Human cytochrome P450 3A4 (CYP3A4) is the most abundant hepatic and intestinal phase I drug-metabolizing enzyme, and participates in the oxidative metabolism of approximately 50% of drugs on the market. In the present study, a transgenic-CYP3A4 (Tg-CYP3A4) mouse model that
J C Gorski et al.
Biochemical pharmacology, 47(9), 1643-1653 (1994-04-29)
The capabilities of cytochrome P4503A4 (CYP3A4), CYP3A5, and fetal hepatic microsomes containing CYP3A7 to metabolize midazolam were investigated using human hepatic microsomes and purified CYP3A4 and CYP3A5. Under initial rate conditions and high substrate concentration (400 microM midazolam), variability among
J Martens et al.
Journal of chromatography. B, Biomedical sciences and applications, 692(1), 95-100 (1997-04-25)
A method for the quantitation of midazolam and its metabolites 1-hydroxymidazolam and 4-hydroxymidazolam from human serum capable of monitoring concentrations achieved under therapeutic conditions is presented. The substances were extracted under basic conditions with toluene and the hydroxy metabolites transformed
Chin B Eap et al.
European journal of clinical pharmacology, 60(4), 237-246 (2004-04-29)
We investigated whether the oral administration of a low dose (75 micro g) of midazolam, a CYP3A probe, can be used to measure the in vivo CYP3A activity. Plasma concentrations of midazolam, 1'OH-midazolam and 4'OH-midazolam were measured after the oral

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