Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 5-METHYL-4-OXO-3,4-DIHYDROTHIENO[2,3-D]PYRIMIDINE-6-CARBOXYLIC ACID
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 5-METHYL-4-OXO-3,4-DIHYDROTHIENO[2,3-D]PYRIMIDINE-6-CARBOXYLIC ACID
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

101667-97-4

101667-97-4 structure

101667-97-4 structure

Name: 5-METHYL-4-OXO-3,4-DIHYDROTHIENO[2,3-D]PYRIMIDINE-6-CARBOXYLIC ACID
Chemical Name: 5-methyl-4-oxo-3H-thieno[2,3-d]pyrimidine-6-carboxylic acid
CAS Number: 101667-97-4
Molecular Formula: C₈H₆N₂O₃S
Molecular Weight: 210.21000
Create Date: 2018-11-28 18:09:37
Modify Date: 2025-08-24 22:03:18

Name	5-methyl-4-oxo-3H-thieno[2,3-d]pyrimidine-6-carboxylic acid
Synonyms	MFCD00463620 5-Methyl-3,4-dihydrothieno<2,3-d>pyrimid-4-one-6-carboxylic acid

Density	1.76g/cm3
Boiling Point	571.8ºC at 760mmHg
Molecular Formula	C₈H₆N₂O₃S
Molecular Weight	210.21000
Flash Point	299.6ºC
Exact Mass	210.01000
PSA	111.29000
LogP	0.99120
Vapour Pressure	6.48E-14mmHg at 25°C

HS Code	2934999090

17417-67-3 structure

17417-67-3

~94%

101667-97-4 structure

101667-97-4

Literature: PAJOUHESH, Hassan; PAJOUHESH, Hossein; DING, Yanbing; TAN, Jason; GRIMWOOD, Mike; BELARDETTI, Francesco; KAUL, Ramesh Patent: US2008/280900 A1, 2008 ;

Precursor 1
17417-67-3
DownStream 1
43088-64-8

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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