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Cytosine

Name: Cytosine
Brand: USP

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:

71-30-7

Molecular Weight:

111.10

UNSPSC Code:

41116107

NACRES:

NA.24

PubChem Substance ID:

329749503

MDL number:

MFCD00006034

Beilstein/REAXYS Number:

2637

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Properties

grade

pharmaceutical primary standard

agency

USP

API family

cytosine

manufacturer/tradename

USP

mp

>300 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

NC1=NC(=O)NC=C1

InChI

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

InChI key

OPTASPLRGRRNAP-UHFFFAOYSA-N

Description

General description

Find answers to frequently asked questions on USP products in USP FAQs.

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.

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

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.

Other Notes

Sales restrictions may apply.

Compare Similar Items

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1 of 1

This Item	PHR1350	C3506	Y0000676
USP 1162148 Cytosine	Supelco PHR1350 Cytosine	Sigma-Aldrich C3506 Cytosine	Y0000676 Gemcitabine impurity A
manufacturer/tradename USP	manufacturer/tradename -	manufacturer/tradename -	manufacturer/tradename EDQM
grade pharmaceutical primary standard	grade certified reference material, pharmaceutical secondary standard	grade -	grade pharmaceutical primary standard
application(s) pharmaceutical (small molecule)	application(s) pharmaceutical (small molecule)	application(s) -	application(s) pharmaceutical (small molecule)
format neat	format neat	format -	format neat
API family cytosine	API family cytosine	API family -	API family gemcitabine
mp >300 °C (lit.)	mp >300 °C (lit.)	mp >300 °C (lit.)	mp >300 °C (lit.)

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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