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Merck
CN

PHR1986

Omeprazole Related Compound B

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

5-Methoxy-2-benzimidazolethiol, 5-METHOXY-2- BENZIMIDAZOLETHIOL

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About This Item

Empirical Formula (Hill Notation):
C8H8N2OS
CAS Number:
37052-78-1
Molecular Weight:
180.23
UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:
MFCD00134581

Key Documents

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InChI

1S/C8H8N2OS/c1-11-5-2-3-6-7(4-5)10-8(12)9-6/h2-4H,1H3,(H2,9,10,12)

SMILES string

COc1ccc2[nH]c(S)nc2c1

InChI key

KOFBRZWVWJCLGM-UHFFFAOYSA-N

grade

certified reference material, pharmaceutical secondary standard

agency

traceable to USP 1478480

CofA

current certificate can be downloaded

packaging

pkg of 30 mg

mp

261-263 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

Quality Level

300

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General description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Analysis Note

These secondary standards offer multi-traceability to the USP and EP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
To see an example of a Certificate of Analysis for this material enter LRAB3219 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

Determination of Omeprazole and Related Compounds

The Ascentis® Express 120 Å C18 pH+ column delivers high efficiency, stable retention, and reliable peak performance under alkaline mobile phase conditions.

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