Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1,7-dimethyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,7-DIMETHYL-1H-PYRIDO[2,3-D][1,3]OXAZINE-2,4-DIONE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

66690-78-6

66690-78-6 structure

66690-78-6 structure

Name: 1,7-DIMETHYL-1H-PYRIDO[2,3-D][1,3]OXAZINE-2,4-DIONE
Chemical Name: 1,7-dimethylpyrido[2,3-d][1,3]oxazine-2,4-dione
CAS Number: 66690-78-6
Molecular Formula: C₉H₈N₂O₃
Molecular Weight: 192.17100
Create Date: 2018-11-24 10:40:14
Modify Date: 2025-09-26 11:55:15

Name	1,7-dimethylpyrido[2,3-d][1,3]oxazine-2,4-dione
Synonyms	A8977 3-aza-N,4-dimethylisatoic anhydride 1,7-Dimethyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

Density	1.364g/cm3
Boiling Point	349.241ºC at 760 mmHg
Molecular Formula	C₉H₈N₂O₃
Molecular Weight	192.17100
Flash Point	165.015ºC
Exact Mass	192.05300
PSA	65.10000
LogP	0.19510
Index of Refraction	1.58

HS Code	2934999090

75-44-5 structure

75-44-5

97484-93-0 structure

97484-93-0

~50%

66690-78-6 structure

66690-78-6

Literature: Coppola, Gary M.; Fraser, James D.; Hardtmann, Goetz E.; Shapiro, Michael J. Journal of Heterocyclic Chemistry, 1985 , vol. 22, p. 193 - 206

28900-10-9 structure

28900-10-9

~%

66690-78-6 structure

66690-78-6

Literature: Journal of Heterocyclic Chemistry, , vol. 22, p. 193 - 206

42784-49-6 structure

42784-49-6

~%

66690-78-6 structure

66690-78-6

Literature: Journal of Heterocyclic Chemistry, , vol. 22, p. 193 - 206

Precursor 3
75-44-5 28900-10-9 42784-49-6
DownStream 1
69407-72-3

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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