cytosine

Modify Date: 2024-01-02 12:08:25

cytosine Structure
cytosine structure
Common Name cytosine
CAS Number 71-30-7 Molecular Weight 111.102
Density 1.6±0.1 g/cm3 Boiling Point 445.8ºC at 760 mmHg
Molecular Formula C4H5N3O Melting Point >300 °C(lit.)
MSDS Chinese USA Flash Point 223.4ºC
Symbol GHS07
GHS07
Signal Word Warning

 Use of cytosine


6-Aminopyrimidin-2(1H)-one is an organic compound that belongs to the class known as pyrimidones.

 Names

Name cytosine
Synonym More Synonyms

 cytosine Biological Activity

Description 6-Aminopyrimidin-2(1H)-one is an organic compound that belongs to the class known as pyrimidones.
Related Catalog
Target

Human Endogenous Metabolite

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 445.8ºC at 760 mmHg
Melting Point >300 °C(lit.)
Molecular Formula C4H5N3O
Molecular Weight 111.102
Flash Point 223.4ºC
Exact Mass 111.043259
PSA 71.77000
LogP -2.29
Index of Refraction 1.689
Storage condition Store at RT.
Stability Stable. Incompatible with strong oxidizing agents.
Water Solubility soluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UW7350150
CHEMICAL NAME :
2(1H)-Pyrimidinone, 4-amino-
CAS REGISTRY NUMBER :
71-30-7
LAST UPDATED :
199701
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C4-H5-N3-O
MOLECULAR WEIGHT :
111.12

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>2222 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - changes in motor activity (specific assay)
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 207,504,1978 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X3859 No. of Facilities: 14 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 312 (estimated) No. of Female Employees: 303 (estimated)

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi:Irritant
Risk Phrases R36/37/38
Safety Phrases S26-S36
RIDADR NONH for all modes of transport
WGK Germany 1
RTECS UW7350150
HS Code 2933599090

 Synthetic Route

 Customs

HS Code 2933591000
Summary HS:2933591000 4-aminopyrimidin-2(1h)-one VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

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 Synonyms

MFCD00006034
Cytosin
EINECS 200-749-5
Cytosinimine
Cytosine
4-aminopyrimidin-2-one
Cyt
Lamivudine Impurity 5
6-Aminopyrimidin-2(1H)-one
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