Pyrazine

Modify Date: 2024-01-06 12:32:38

Pyrazine Structure
Pyrazine structure
Common Name Pyrazine
CAS Number 290-37-9 Molecular Weight 80.088
Density 1.1±0.1 g/cm3 Boiling Point 118.6±13.0 °C at 760 mmHg
Molecular Formula C4H4N2 Melting Point 50-56 °C(lit.)
MSDS Chinese USA Flash Point 55.6±0.0 °C
Symbol GHS02 GHS07
GHS02, GHS07
Signal Word Danger

 Names

Name pyrazine
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 118.6±13.0 °C at 760 mmHg
Melting Point 50-56 °C(lit.)
Molecular Formula C4H4N2
Molecular Weight 80.088
Flash Point 55.6±0.0 °C
Exact Mass 80.037445
PSA 25.78000
LogP -0.28
Vapour Pressure 19.7±0.2 mmHg at 25°C
Index of Refraction 1.503
Storage condition Flammables area
Stability Stable. Highly flammable. Incompatible with acids, oxidizing agents.
Water Solubility SOLUBLE

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ2015000
CHEMICAL NAME :
Pyrazine
CAS REGISTRY NUMBER :
290-37-9
LAST UPDATED :
199710
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C4-H4-N2
MOLECULAR WEIGHT :
80.10
WISWESSER LINE NOTATION :
T6N DNJ

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 :
2730 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Rodent - hamster Ovary
DOSE/DURATION :
2500 mg/L
REFERENCE :
FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 18,581,1980 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5605 No. of Facilities: 3 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 61 (estimated) No. of Female Employees: 3 (estimated)

 Safety Information

Symbol GHS02 GHS07
GHS02, GHS07
Signal Word Danger
Hazard Statements H228-H315-H319-H335
Precautionary Statements P210-P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi,F
Risk Phrases R36/37/38:Irritating to eyes, respiratory system and skin . R11:Highly Flammable.
Safety Phrases S26-S36-S16
RIDADR UN 1325 4.1/PG 2
WGK Germany 3
RTECS UQ2015000
Packaging Group III
Hazard Class 4.1
HS Code 29339990

 Synthetic Route

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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 Synonyms

Paradiazine
EINECS 206-027-6
Piazine
MFCD00006122
1,4-Diazabenzene
Pyrazine
1,4-Diazine
p-Diazine
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