5-Methylpyrazin-2-ol

Modify Date: 2025-08-25 11:24:16

5-Methylpyrazin-2-ol structure	Common Name	5-Methylpyrazin-2-ol
	CAS Number	20721-17-9	Molecular Weight	110.114
	Density	1.2±0.1 g/cm3	Boiling Point	376.2ºC at 760 mmHg
	Molecular Formula	C₅H₆N₂O	Melting Point	N/A
	MSDS	N/A	Flash Point	181.3ºC

Name	5-methyl-1H-pyrazin-2-one
Synonym	More Synonyms

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

H-Gly-NH2.HCl

CAS#:1668-10-6

Methylglyoxal

CAS#:78-98-8

2-Hydroxy-6-Met...

CAS#:20721-18-0

5-Methylpyrazin-2-ol

CAS#: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%

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

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 5-Methylpyrazin-2-ol
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 5-Methylpyrazin-2-ol
Price: ￥448.0/250mg ￥1078.0/1g
Purity: 98.0%
Delivery: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

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5-Methylpyrazin-2-ol

Names

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Safety Information

Synthetic Route

Customs

Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.