71-30-7

71-30-7 structure

Name: cytosine
Chemical Name: cytosine
CAS Number: 71-30-7
Molecular Formula: C₄H₅N₃O
Molecular Weight: 111.102
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyrimidine compound Cytosine
Create Date: 2018-02-04 08:00:00
Modify Date: 2025-08-20 12:25:37
6-Aminopyrimidin-2(1H)-one is an organic compound that belongs to the class known as pyrimidones.

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

Description	6-Aminopyrimidin-2(1H)-one is an organic compound that belongs to the class known as pyrimidones.
Related Catalog	Natural Products >> Quinones Research Areas >> Others
Target	Human Endogenous Metabolite

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

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)

Symbol	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

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%