Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 5-Methylpyrazin-2-ol
Price:
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 5-Methylpyrazin-2-ol
Price: ￥448.0/250mg ￥1078.0/1g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Hydroxy-5-methylpyrazine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

20721-17-9

20721-17-9 structure

20721-17-9 structure

Name: 5-Methylpyrazin-2-ol
Chemical Name: 5-methyl-1H-pyrazin-2-one
CAS Number: 20721-17-9
Molecular Formula: C₅H₆N₂O
Molecular Weight: 110.114
Create Date: 2018-02-09 08:00:00
Modify Date: 2024-01-03 19:10:11

Name	5-methyl-1H-pyrazin-2-one
Synonyms	2-pyrazinol, 5-methyl- 5-Methyl-2(1H)-pyrazinone 2(1H)-Pyrazinone, 5-methyl- 5-Methyl-2-oxo-1,2-dihydro-pyrazin 2-Hydroxy-5-methylpyrazine 5-Methyl-1H-pyrazin-2-on 5-Methylpyrazin-2-ol Pyrazine,2-hydroxy-5-methyl Pyrazinol,5-methyl

Density	1.2±0.1 g/cm3
Boiling Point	376.2ºC at 760 mmHg
Molecular Formula	C₅H₆N₂O
Molecular Weight	110.114
Flash Point	181.3ºC
Exact Mass	110.048012
PSA	46.01000
LogP	-0.90
Vapour Pressure	3.41E-06mmHg at 25°C
Index of Refraction	1.577

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ3500000

CHEMICAL NAME :: Pyrazine, 2-hydroxy-5-methyl-

CAS REGISTRY NUMBER :: 20721-17-9

LAST UPDATED :: 199106

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C5-H6-N2-O

MOLECULAR WEIGHT :: 110.13

WISWESSER LINE NOTATION :: T6N DNJ BQ E1

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 :: 1300 mg/kg

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

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 17,244,1970

Hazard Codes	Xi
HS Code	2933990090

1668-10-6 structure

1668-10-6

78-98-8 structure

78-98-8

~%

20721-18-0 structure

20721-18-0

20721-17-9 structure

20721-17-9

Literature: Journal of the American Chemical Society, , vol. 74, p. 1580,1582 US2520088 , ;

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%