Y0000676

Gemcitabine impurity A

European Pharmacopoeia (EP) Reference Standard

Synonym(s):
4-Aminopyrimidin-2-(1H)-one, 4-Amino-2-hydroxypyrimidine, Cytosine
Empirical Formula (Hill Notation):
C4H5N3O
CAS Number:
Molecular Weight:
111.10
Beilstein/REAXYS Number:
2637
MDL number:
PubChem Substance ID:
NACRES:
NA.24
Pricing and availability is not currently available.

grade

pharmaceutical primary standard

form

neat

CofA

certificate is enclosed in each package

mfr. no.

EDQM

mp

>300 °C (lit.)

Featured Industry

Pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

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

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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.

Packaging

Unit quantity: 20 mg. Subject to change. The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

Caution

Other Notes

Sales restrictions may apply.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
C P Walsh et al.
Current topics in microbiology and immunology, 301, 283-315 (2006-03-31)
Cytosine methylation is a common form of post-replicative DNA modification seen in both bacteria and eukaryotes. Modified cytosines have long been known to act as hotspots for mutations due to the high rate of spontaneous deamination of this base to...
Benjamin Delatte et al.
Briefings in functional genomics, 12(3), 191-204 (2013-04-30)
Epigenetic genome marking and chromatin regulation are central to establishing tissue-specific gene expression programs, and hence to several biological processes. Until recently, the only known epigenetic mark on DNA in mammals was 5-methylcytosine, established and propagated by DNA methyltransferases and...
Yong Liu et al.
Hypertension (Dallas, Tex. : 1979), 63(4), 827-838 (2014-01-15)
Analysis of 5-hydroxymethylcytosine (5hmC) at single-base resolution has been largely limited to studies of stem cells or developmental stages. Given the potential importance of epigenetic events in hypertension, we have analyzed 5hmC and 5-methylcytosine (5mC) at single-base resolution in the...
Saki Kondo et al.
PloS one, 9(9), e108627-e108627 (2014-10-03)
Non-coding small RNAs are involved in many physiological responses including viral life cycles. Adenovirus-encoding small RNAs, known as virus-associated RNAs (VA RNAs), are transcribed throughout the replication process in the host cells, and their transcript levels depend on the copy...
Toni Pfaffeneder et al.
Nature chemical biology, 10(7), 574-581 (2014-05-20)
Ten eleven translocation (Tet) enzymes oxidize the epigenetically important DNA base 5-methylcytosine (mC) stepwise to 5-hydroxymethylcytosine (hmC), 5-formylcytosine and 5-carboxycytosine. It is currently unknown whether Tet-induced oxidation is limited to cytosine-derived nucleobases or whether other nucleobases are oxidized as well....

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