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Cytosine CAS No.:71-30-7 supplier Hangzhou Shitai Biotech
May 10, 2018

Cytosine (C) is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA). It is a pyrimidine derivative, with a heterocyclic aromatic ring and two substituents attached (an amine group at position 4 and a keto group at position 2). The nucleoside of cytosine is cytidine. In Watson-Crick base pairing, it forms three hydrogen bonds with guanine.


PRODUCT   NAME

Cytosine

CAS   No.:

71-30-7

Synonyms:

Cytosinimine;

4-aminopyrimidin-2-one;

Formula:

C21H22Cl2FN5O

Molecular   Weight:

111.10200

PSA:

71.77000

LogP:

-0.06670

 

Structure

image.png                         

 

Description

Appearance   & Physical State:

white   solid

Density:

0.48

Melting   Point:

300ºC

Boiling   Point:

445.8ºC   at 760 mmHg

Flash   Point:

223.4ºC

Refractive   Index:

1.688

Water   Solubility:

soluble

Stability:

Stable.   Incompatible with strong oxidizing agents.

Storage   Condition:

Store   at RT.

RTECS:

UW7350150

Safety   Statements:

S26-S36

HS   Code:

2933599090

WGK   Germany:

1

Risk   Statements:

R36/37/38

Hazard   Codes:

Xi

 

Certificate of Analysis

 

ProductName: Cytosine

Cas:        71-30-7

Batch No.:     20100418

MFG Date:  Apr.18.2010

Analysis Date:Aug.20.2010

 

Inspect   Item

Quantity   Standard

Inspection   Result

Appearance

A   White or almost white crystalline

Powder

Conforms

IR

The   IR spectra of sample should be concordant to that of working standard

Conforms

NMR

NMR   spectrum correspons to that of the standard preparation

conforms

Assay(HPLC)

≥99.0%

99.94%

Residue   on ignition

≤0.10%

0.08%

Heavy   metals

≤10ppm

Conforms

Loss   on drying

≤0.50%

0.40%

Conclusion  

In   accordance with enterprise standard


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