Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Quinoxaline
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Quinoxaline
Price: ￥458.0/100g ￥148.0/25g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

DC Chemicals Limited
China
Product Name: Quinoxaline
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

ShangHai DC Chemicals Co.,Ltd
China
Product Name: Quinoxaline
Price: ￥Inquiry/1g
Purity: 98.9%
Stocking Period: 1 Day
Contact: Tony Lai
Email: order@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Quinoxaline
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

91-19-0

91-19-0 structure

91-19-0 structure

Name: Quinoxaline
Chemical Name: quinoxaline
CAS Number: 91-19-0
Molecular Formula: C₈H₆N₂
Molecular Weight: 130.147
Catalog: Pharmaceutical intermediate Heterocyclic compound Quinoline compound
Create Date: 2018-08-20 14:23:49
Modify Date: 2025-08-25 18:56:04

Name	quinoxaline
Synonyms	Quinoxaline 1,4-Benzodiazine EINECS 202-047-4 Benzopyrazine 1,4-Diazanaphthalene MFCD00006719 Phenopiazine Phenpiazine Benzoparadiazine Quinazine

Density	1.2±0.1 g/cm3
Boiling Point	229.5±0.0 °C at 760 mmHg
Melting Point	29-32 °C(lit.)
Molecular Formula	C₈H₆N₂
Molecular Weight	130.147
Flash Point	98.3±0.0 °C
Exact Mass	130.053101
PSA	25.78000
LogP	1.30
Vapour Pressure	0.1±0.4 mmHg at 25°C
Index of Refraction	1.653
Storage condition	2-8°C
Water Solubility	SOLUBLE

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VD1225000

CHEMICAL NAME :: Quinoxaline

CAS REGISTRY NUMBER :: 91-19-0

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C8-H6-N2

MOLECULAR WEIGHT :: 130.16

WISWESSER LINE NOTATION :: T66 BN ENJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

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

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD607-952

Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	VD1225000
HS Code	29339990

Precursor 9
95-54-5 1074-12-0 107-21-1 3476-89-9
2423-66-7 57-55-6 60418-63-5 36856-92-5
273-09-6
DownStream 10
105702-07-6 4744-50-7 3476-89-9 5021-45-4
18503-48-5 25871-20-9 18522-05-9 108163-91-3
231-23-2 20595-03-3

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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