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China
Product Name: 7-Chloro-3,4-dihydro-3-propionyl-1H-2,3-benzoxazine
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21977-20-8

21977-20-8 structure

21977-20-8 structure

Name: 7-Chloro-3,4-dihydro-3-propionyl-1H-2,3-benzoxazine
Chemical Name: 1-(7-chloro-1,4-dihydro-2,3-benzoxazin-3-yl)propan-1-one
CAS Number: 21977-20-8
Molecular Formula: C₁₁H₁₂ClNO₂
Molecular Weight: 225.67100
Create Date: 2017-07-04 06:40:55
Modify Date: 2025-08-26 18:54:29

Name	1-(7-chloro-1,4-dihydro-2,3-benzoxazin-3-yl)propan-1-one
Synonyms	1H-2,3-Benzoxazine,7-chloro-3,4-dihydro-3-propionyl 7-Chloro-3-propionyl-3,4-dihydro-1H-2,3-benzoxazine 1H-2,3-BENZOXAZINE,3,4-DIHYDRO-7-CHLORO-3-PROPIONYL 7-Chlor-3-propionyl-1H-3,4-dihydro-2,3-benzoxazin

Density	1.267g/cm3
Boiling Point	324ºC at 760 mmHg
Molecular Formula	C₁₁H₁₂ClNO₂
Molecular Weight	225.67100
Flash Point	149.7ºC
Exact Mass	225.05600
PSA	29.54000
LogP	2.46170
Vapour Pressure	0.000253mmHg at 25°C
Index of Refraction	1.561

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DM3074000

CHEMICAL NAME :: 1H-2,3-Benzoxazine, 3,4-dihydro-7-chloro-3-propionyl-

CAS REGISTRY NUMBER :: 21977-20-8

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C11-H12-Cl-N-O2

MOLECULAR WEIGHT :: 225.69

WISWESSER LINE NOTATION :: T66 CNOT&J CV2 HG

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 :: 500 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia

REFERENCE :: JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 12,261,1969

HS Code	2934999090

21977-12-8 structure

21977-12-8

79-03-8 structure

79-03-8

~%

21977-20-8 structure

21977-20-8

Literature: Pifferi,G. et al. Journal of Medicinal Chemistry, 1969 , vol. 12, # 2 p. 261 - 266

Precursor 2
21977-12-8 79-03-8
DownStream 0

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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