Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine
Price: ￥1648.0/1g ￥658.0/250mg
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

20348-23-6

20348-23-6 structure

20348-23-6 structure

Name: 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine
Chemical Name: 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine
CAS Number: 20348-23-6
Molecular Formula: C₇H₈N₂O
Molecular Weight: 136.151
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridine compound Dihydropyridine
Create Date: 2018-06-27 13:41:35
Modify Date: 2025-08-24 23:00:25

Name	3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine
Synonyms	3,4-Dihydro-2H-pyrido<3,2-b>-1,4-oxazin 3,4-Dihydro-2H-1-oxa-4,5-diaza-naphthalene 2H-PYRIDO[3,2-B]-1,4-OXAZINE,3,4-DIHYDRO 3,4-Dihydro-2H-pyrido[3,2-b]-1,4-oxazine 3,4-Dihydro-dimethyl-2H-pyrido<3,2-b>-1,4-oxazin dihydropyridoboxazine 2H,3H,4H-pyrido[3,2-b][1,4]oxazine 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine 2H-Pyrido[3,2-b]-1,4-oxazine, 3,4-dihydro- 3,4-dihydro-2-pyrido[3,2-b][1,4]oxazoline

Density	1.2±0.1 g/cm3
Boiling Point	285.7±29.0 °C at 760 mmHg
Melting Point	85ºC
Molecular Formula	C₇H₈N₂O
Molecular Weight	136.151
Flash Point	126.6±24.3 °C
Exact Mass	136.063660
PSA	34.15000
LogP	1.55
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.545

HS Code	2934999090

20348-09-8 structure

20348-09-8

~87%

20348-23-6 structure

20348-23-6

Literature: WO2007/53131 A2, ; Page/Page column 133 ; WO 2007/053131 A2

16867-03-1 structure

16867-03-1

~%

20348-23-6 structure

20348-23-6

Literature: Acta Chemica Scandinavica (1947-1973), , vol. 23, p. 2322 - 2324

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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