289-95-2

289-95-2 structure

Name: Pyrimidine
Chemical Name: pyrimidine
CAS Number: 289-95-2
Molecular Formula: C₄H₄N₂
Molecular Weight: 80.088
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyrimidine compound Pyrimidine
Create Date: 2018-02-05 08:00:00
Modify Date: 2025-08-20 19:06:38

Name	pyrimidine
Synonyms	iazine Miazine Pyrimidin EINECS 206-026-0 PyriMidine free base 1,3-DIAZINE 1,3-Diazin Metadiazine m-Diazine Pyrimidine MFCD00006059

Density	1.1±0.1 g/cm3
Boiling Point	122.4±9.0 °C at 760 mmHg
Melting Point	19-22 °C(lit.)
Molecular Formula	C₄H₄N₂
Molecular Weight	80.088
Flash Point	31.1±0.0 °C
Exact Mass	80.037445
PSA	25.78000
LogP	-0.33
Vapour Pressure	16.8±0.2 mmHg at 25°C
Index of Refraction	1.503
Storage condition	Flammables area
Stability	Stable, but air-sensitive and hygroscopic. Incompatible with acids, acid chlorides, acid anhydrides, strong oxidizing agents, carbon dioxide. Flammable.
Water Solubility	soluble

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PNASA6 Proceedings of the National Academy of Sciences of the United States of America. (National Academy of Sciences, Printing & Pub. Office, 2101 Constitution Ave., Washington, DC 20418) V.1- 1915- Volume(issue)/page/year: 48,686,1962 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7311 No. of Facilities: 7 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 1822 (estimated) No. of Female Employees: 272 (estimated)

Symbol	GHS02
Signal Word	Warning
Hazard Statements	H226
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xi
Risk Phrases	R10
Safety Phrases	S23-S24/25-S16
RIDADR	UN 1993 3/PG 3
WGK Germany	3
RTECS	UV6263000
Packaging Group	III
Hazard Class	3
HS Code	2933599090

HS Code	2933599090
Summary	2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%