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PHR1350

Supelco

Cytosine

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

Cytosine, 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
Beilstein:
2637
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

certified reference material
pharmaceutical secondary standard

Quality Level

Agency

traceable to USP 1162148

API family

cytosine

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

>300 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-30°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

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.

Application

Cytosine may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by capillary zone electrophoresis and chromatography techniques.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP 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.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAA1102 in the slot below. This is an example certificate only and may not be the lot that you receive.

related product

Product No.
Description
Pricing

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Liu G, et al.
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Il Farmaco (Societa Chimica Italiana : 1989), 60(6-7), 547-554 (2005)
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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
Rebecca C Richmond et al.
Human molecular genetics, 24(8), 2201-2217 (2015-01-02)
Maternal smoking during pregnancy has been found to influence newborn DNA methylation in genes involved in fundamental developmental processes. It is pertinent to understand the degree to which the offspring methylome is sensitive to the intensity and duration of prenatal

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