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

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

20348-09-8

20348-09-8 structure

20348-09-8 structure

Name: 4H-pyrido[3,2-b][1,4]oxazin-3-one
Chemical Name: 4H-pyrido[3,2-b][1,4]oxazin-3-one
CAS Number: 20348-09-8
Molecular Formula: C₇H₆N₂O₂
Molecular Weight: 150.13500
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridine compound Pyridine derivative
Create Date: 2018-12-25 18:04:24
Modify Date: 2025-09-16 10:54:50

Name	4H-pyrido[3,2-b][1,4]oxazin-3-one
Synonyms	2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one 2H-Pyrido[4,3-b]-1,4-oxazin-3-(4H)-one 2H-Pyrido[3,2-b][1,4]oxazin-3(4H)-one pyridoboxazinone EINECS 243-751-1 MFCD00006697

Density	1.328g/cm3
Boiling Point	384.159ºC at 760 mmHg
Melting Point	204-206 °C(lit.)
Molecular Formula	C₇H₆N₂O₂
Molecular Weight	150.13500
Exact Mass	150.04300
PSA	51.22000
LogP	0.55050
Vapour Pressure	0mmHg at 25°C
Index of Refraction	1.568

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2934999090

Precursor 9
1268818-15-0 16867-03-1 79-11-8 79-04-9
105-36-2 337463-88-4 201230-82-2 15128-82-2
93765-23-2
DownStream 4
122450-96-8 337463-64-6 34968-16-6 20348-23-6

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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