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Merck

1162148

USP

Cytosine

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

4-Amino-2-hydroxypyrimidine, 4-Aminopyrimidin-2-(1H)-one

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About This Item

Empirical Formula (Hill Notation):
C4H5N3O
CAS Number:
Molecular Weight:
111.10
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
2637

Product Name

Cytosine, United States Pharmacopeia (USP) Reference Standard

InChI

1S/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)

SMILES string

NC1=NC(=O)NC=C1

InChI key

OPTASPLRGRRNAP-UHFFFAOYSA-N

grade

pharmaceutical primary standard

API family

cytosine

manufacturer/tradename

USP

mp

>300 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

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Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Application

Cytosine USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.
Also, for use with USP monographs such as:
  • Gemcitabine for Injection
  • Gemcitabine Hydrochloride

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Other Notes

Sales restrictions may apply.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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