9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl-

Modify Date: 2025-08-27 10:57:05

9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl- Structure
9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl- structure
Common Name 9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl-
CAS Number 37795-71-4 Molecular Weight 202.20900
Density 1.41g/cm3 Boiling Point 330.8ºC at 760mmHg
Molecular Formula C11H10N2O2 Melting Point N/A
MSDS N/A Flash Point 153.9ºC

 Names

Name 3-methyl-2,3-dihydro-[1,2]oxazolo[3,2-b]quinazolin-9-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.41g/cm3
Boiling Point 330.8ºC at 760mmHg
Molecular Formula C11H10N2O2
Molecular Weight 202.20900
Flash Point 153.9ºC
Exact Mass 202.07400
PSA 44.12000
LogP 0.94220
Index of Refraction 1.692
InChIKey FASHSDVYBORDDB-UHFFFAOYSA-N
SMILES CC1COn2c1nc1ccccc1c2=O

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NY3470000
CHEMICAL NAME :
9H-Isoxazolo(3,2-b)quinazolin-9-one, 2,3-dihydro-3-methyl-
CAS REGISTRY NUMBER :
37795-71-4
LAST UPDATED :
199701
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C11-H10-N2-O2
MOLECULAR WEIGHT :
202.23
WISWESSER LINE NOTATION :
T C566 BVNO HNT&&J F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
765 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 37,164,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
670 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 37,164,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
290 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 37,164,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
860 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 37,164,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
600 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 37,164,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
243 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 37,164,1976

 Safety Information

HS Code 2934999090

 Synthetic Route

~%

9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl- Structure

9H-Isoxazolo[3,...

CAS#:37795-71-4

Literature: Reisner; Ludwig; Simon; Dejneka; Sofia Arzneimittel-Forschung/Drug Research, 1977 , vol. 27, # 4 p. 766 - 770

~%

9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl- Structure

9H-Isoxazolo[3,...

CAS#:37795-71-4

Literature: Reisner; Ludwig; Simon; Dejneka; Sofia Arzneimittel-Forschung/Drug Research, 1977 , vol. 27, # 4 p. 766 - 770

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

9H-ISOXAZOLO(3,2-b)QUINAZOLIN-9-ONE,2,3-DIHYDRO-3-METHYL
3-methyl-2,3-dihydro-isoxazolo[3,2-b]quinazolin-9-one
EINECS 253-671-9
3-Methyl-2,3-dihydro-9H-isoxazolo(3,2-b)quinazolin-9-one
2,3-Dihydro-3-methyl-9H-isoxazolo(3,2-b)quinazolin-9-one
W 2451
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