Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Pyrido[2,3-b]pyrazine
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Pyrido[2,3-b]pyrazine
Price: ￥778.0/250mg ￥258.0/50mg
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Pyrido[2,3-b]pyrazine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
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Shanghai Amole Biotechnology Co., Ltd.
China
Product Name: Pyrido[2,3-b]pyrazine
Price: ￥Inquiry/100mg ￥Inquiry/10g ￥Inquiry/1g ￥Inquiry/250mg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

322-46-3

322-46-3 structure

322-46-3 structure

Name: Pyrido[2,3-b]pyrazine
Chemical Name: Pyrido[2,3-b]pyrazine
CAS Number: 322-46-3
Molecular Formula: C₇H₅N₃
Molecular Weight: 131.13500
Create Date: 2018-04-23 08:00:00
Modify Date: 2025-08-24 13:02:23

Name	Pyrido[2,3-b]pyrazine
Synonyms	1,4,5-Triazanaphthalene MFCD00053172 2,3-pyridopyrazine Pyrido(2,3-b)pyrazine 1,4,5-trazanaphthalene 1,4,5-Triazanaphthalin Pyrido(3,2-b)pyrazine EINECS 206-294-9 5-azaquinoxaline

Density	1.27 g/cm3
Boiling Point	253.9ºC at 760 mmHg
Melting Point	139-143 °C
Molecular Formula	C₇H₅N₃
Molecular Weight	131.13500
Flash Point	115.9ºC
Exact Mass	131.04800
PSA	38.67000
LogP	1.02480
Index of Refraction	1.665

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UV1151600

CHEMICAL NAME :: Pyrido(2,3-b)pyrazine

CAS REGISTRY NUMBER :: 322-46-3

BEILSTEIN REFERENCE NO. :: 0111634

LAST UPDATED :: 199709

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C7-H5-N3

MOLECULAR WEIGHT :: 131.15

WISWESSER LINE NOTATION :: T66 BN EN JNJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 180 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#03516

Hazard Codes	Xn:Harmful;
Risk Phrases	R20/21/22;R36/37/38
Safety Phrases	S36/37/39-S26
RTECS	UV1151600
HS Code	2933990090

4845-50-5 structure

4845-50-5

452-58-4 structure

452-58-4

~87%

322-46-3 structure

322-46-3

Literature: Venuti, Michael C. Synthesis, 1982 , # 1 p. 61 - 63

25710-18-3 structure

25710-18-3

~%

322-46-3 structure

322-46-3

Literature: Chemistry - A European Journal, , vol. 13, # 6 p. 1754 - 1762

452-58-4 structure

452-58-4

517-21-5 structure

517-21-5

~%

322-46-3 structure

322-46-3

Literature: Journal of the Chemical Society, , p. 1389,1392 Journal of the Chemical Society, , p. 303,307

52333-42-3 structure

52333-42-3

~%

322-46-3 structure

322-46-3

Literature: Journal of the Chemical Society, , p. 303,307

452-58-4 structure

452-58-4

131543-46-9 structure

131543-46-9

~%

322-46-3 structure

322-46-3

Literature: Pharmaceutical Chemistry Journal, , vol. 16, # 11 p. 824 - 826 Khimiko-Farmatsevticheskii Zhurnal, , vol. 16, # 11 p. 1329 - 1332

Precursor 5
4845-50-5 452-58-4 25710-18-3 517-21-5
52333-42-3
DownStream 1
35808-40-3

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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