Pyrazine CAS Nr 290-37-9

Chemical Property:

Molecular Formula	C4H4N 2
Molar Mass	80.09 ib
Qhov ntom	1.031 g / mL ntawm 25 ° C (lit.)
Melting Point	50-56 ° C (lit.)
Boling Point	115-116 ° C (lit.)
Flash Point	132 ° F
JECFA Number	951 ua
Dej Solubility	SOLUBLE
Solubility	Soluble hauv dej, ethanol, ether, thiab lwm yam.
Vapor Siab	19.7 mmHg ntawm 25 ° C
Qhov tshwm sim	Dawb siv lead ua
Specific Gravity	1.031 ib
Xim	Dawb
Merck	14, 7957 ib
BRN	103905 ib
pKa	0.65 (ntawm 27 ℃)
Kev cia khoom	Khaws hauv qab +30 ° C.
Kev ruaj ntseg	ruaj khov. Cov nplaim taws heev. Incompatible nrog acids, oxidizing tus neeg sawv cev.
rhiab heev	Hygroscopic
Refractive Index	1.5235 ib
MDL	PAB 00006122
Siv	Siv ua tshuaj intermediates, Essence, Fragrance Intermediates

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Product Detail

Khoom cim npe

Risk Codes	R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R11 - Cov nplaim hluav taws kub heev
Kev nyab xeeb piav qhia	S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36 - Hnav khaub ncaws tiv thaiv zoo. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob.
UN IDs	UN 1325 4.1/PG 2
WGK Germany	3
RTECS	UAQ 2015 000
TSCA	T
HS Code	293399 0
Hazard Class	4.1
Packing Group	III

Taw qhia

Heterocyclic compounds uas muaj ob lub heteronitrogen atoms ntawm txoj haujlwm 1 thiab 4. Nws yog ib qho isomer rau pyrimidine thiab pyridazine. Soluble hauv dej, cawv thiab ether. Nws muaj zog aromaticity, zoo ib yam li pyridine. Nws tsis yooj yim rau kev hloov pauv cov tshuaj electrophilic, tab sis nws yooj yim rau kev hloov pauv cov tshuaj tiv thaiv nrog nucleophiles.

Yav dhau los: 2-4-Heptadienal (CAS # 5910-85-0)

Tom ntej: 2-Ethoxy-3-Isopropyl Pyrazine (CAS # 72797-16-1)

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