Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,5-Dihydro-6-methyl-5-oxo-2-pyrazinecarboxylic acid
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,5-Dihydro-6-methyl-5-oxo-2-pyrazinecarboxylic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Shanghai Amole Biotechnology Co., Ltd.
China
Product Name: 4,5-Dihydro-6-methyl-5-oxo-2-pyrazinecarboxylic acid
Price: ￥Inquiry/100mg ￥Inquiry/1g ￥Inquiry/250mg
Purity: 97.0%
Stocking Period: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

77168-83-3

77168-83-3 structure

77168-83-3 structure

Name: 4,5-Dihydro-6-methyl-5-oxo-2-pyrazinecarboxylic acid
Chemical Name: 6-Methyl-5-oxo-4,5-dihydropyrazine-2-carboxylic acid
CAS Number: 77168-83-3
Molecular Formula: C₆H₆N₂O₃
Molecular Weight: 154.123
Create Date: 2018-12-27 23:56:06
Modify Date: 2025-09-20 19:15:44

Name	6-Methyl-5-oxo-4,5-dihydropyrazine-2-carboxylic acid
Synonyms	2-Pyrazinecarboxylic acid, 4,5-dihydro-6-methyl-5-oxo- 5-methyl-6-oxo-1H-pyrazine-3-carboxylic acid 6-Methyl-5-oxo-4,5-dihydro-2-pyrazinecarboxylic acid

Density	1.5±0.1 g/cm3
Molecular Formula	C₆H₆N₂O₃
Molecular Weight	154.123
Exact Mass	154.037842
PSA	83.05000
LogP	-0.99
Index of Refraction	1.635

HS Code	2933990090

57005-61-5 structure

57005-61-5

~78%

77168-83-3 structure

77168-83-3

Literature: Mano; Seo; Iami Chemical and Pharmaceutical Bulletin, 1980 , vol. 28, # 10 p. 3057 - 3063

77168-81-1 structure

77168-81-1

~53%

77168-83-3 structure

77168-83-3

Literature: Mano; Seo; Iami Chemical and Pharmaceutical Bulletin, 1980 , vol. 28, # 10 p. 3057 - 3063

77168-82-2 structure

77168-82-2

~33%

77168-83-3 structure

77168-83-3

Literature: Mano; Seo; Iami Chemical and Pharmaceutical Bulletin, 1980 , vol. 28, # 10 p. 3057 - 3063

Precursor 3
57005-61-5 77168-81-1 77168-82-2
DownStream 3
77168-85-5 77168-84-4 77168-88-8

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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