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Merck
CN

L-021

Lorazepam glucuronide solution

100 μg/mL in acetonitrile: water (1:1), ampule of 1 mL, certified reference material, Cerilliant®

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About This Item

Empirical Formula (Hill Notation):
C21H18Cl2N2O8
CAS Number:
32781-79-6
Molecular Weight:
497.28
NACRES:
NA.24
PubChem Substance ID:
329817344
UNSPSC Code:
41116107
MDL number:
MFCD02682126

Key Documents

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InChI

1S/C21H18Cl2N2O8/c22-8-5-6-12-10(7-8)13(9-3-1-2-4-11(9)23)25-19(18(29)24-12)33-21-16(28)14(26)15(27)17(32-21)20(30)31/h1-7,14-17,19,21,26-28H,(H,24,29)(H,30,31)/t14-,15-,16+,17-,19?,21-/m0/s1

SMILES string

O[C@@H]1[C@@H](O)[C@H](OC2N=C(c3ccccc3Cl)c4cc(Cl)ccc4NC2=O)O[C@@H]([C@H]1O)C(O)=O

InChI key

IWOJSSFCRQKNKN-IFBJMGMISA-N

grade

certified reference material

form

liquid

feature

Snap-N-Spike®/Snap-N-Shoot®

packaging

ampule of 1 mL

manufacturer/tradename

Cerilliant®

drug control

Narcotic Licence Schedule B (Switzerland)

concentration

100 μg/mL in acetonitrile: water (1:1)

technique(s)

gas chromatography (GC): suitable, liquid chromatography (LC): suitable

application(s)

clinical testing

format

single component solution

storage temp.

−20°C

Quality Level

300

Related Categories

General description

Lorazepam glucuronide is a primary urinary metabolite of lorazepam, a benzodiazepine often prescribed for treatment of anxiety disorders. This Certified Spiking Solution® is suitable for use as starting material in calibrators or controls for a variety of LC/MS or GC/MS applications from clinical toxicology and forensic analysis to urine drug testing.

Legal Information

Snap-N-Shoot is a registered trademark of Cerilliant Corporation
Snap-N-Spike is a registered trademark of Merck KGaA, Darmstadt, Germany
CERILLIANT is a registered trademark of Merck KGaA, Darmstadt, Germany
CERTIFIED SPIKING SOLUTION is a registered trademark of Cerilliant Corporation

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

55.4 °F - closed cup

flash_point_c

13 °C - closed cup

Regulatory Information

危险化学品
This item has

Certificates of Analysis (COA)

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In vitro binding of lorazepam and lorazepam glucuronide to cholestyramine, colestipol, and activated charcoal.
R J Herman et al.
Pharmaceutical research, 8(4), 538-540 (1991-04-01)
R Verbeeck et al.
British journal of clinical pharmacology, 3(6), 1033-1039 (1976-12-01)
To evaluate the effect of end-stage renal insufficiency and haemodialysis on the elimination of lorazepam, single oral doses of the drug (2.5 mg) were administered to normal subjects and patients with chronic renal failure (CC(r) : less than 2 ml/min)
R A Branch et al.
The Journal of laboratory and clinical medicine, 102(5), 805-812 (1983-11-01)
The relative effects of pretreatment with allyl alcohol and carbon tetrachloride on oxidative and glucuronide metabolism of lorazepam have been compared in the isolated perfused rat liver. Livers from rats pretreated for 24 hr with allyl alcohol (1.8 ml/kg, 1:50
A J Cummings et al.
British journal of clinical pharmacology, 12(4), 511-515 (1981-10-01)
1 An investigation has been made of the excretion of alpha-methyldopa, alpha-methyldopa sulphate, lorazepam and lorazepam glucuronide in the urine of neonates. 2 The rate of elimination of both the drugs in the newborn is slow compared with the adult
Olga Papini et al.
Journal of pharmaceutical and biomedical analysis, 40(2), 389-396 (2005-10-26)
A LC/MS/MS method for the quantitative determination of lorazepam in human plasma and urine samples was developed and validated. The enantioselective assay allowed to separate the enantiomers and to verify the stereochemical instability of lorazepam. The linearity assessed for lorazepam
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Protocols

UHPLC/MS for Drug Detection in Urine

Optimize β-glucuronidase hydrolysis for glucuronide metabolite analysis considering factors like time, temperature, pH, and enzyme concentration.

使用UHPLC/MS（TOF）检测不同酶水解条件处理的尿液中药物和代谢物

为了使用β-葡糖醛酸酶优化水解，必须对每种待分析的葡糖苷酸代谢物进行某些因素的评估，例如孵育时间、温度、水解pH、酶源和酶浓度。

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