Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

37795-71-4

37795-71-4 structure

Name: 9H-Isoxazolo[3,2-b]quinazolin-9-one,2,3-dihydro-3-methyl-
Chemical Name: 3-methyl-2,3-dihydro-[1,2]oxazolo[3,2-b]quinazolin-9-one
CAS Number: 37795-71-4
Molecular Formula: C₁₁H₁₀N₂O₂
Molecular Weight: 202.20900
Create Date: 2017-05-13 16:02:55
Modify Date: 2025-08-27 10:57:05

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

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

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

HS Code	2934999090

7623-10-1

5623-04-1

37795-71-4

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

118-48-9

5623-04-1

37795-71-4

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

Precursor 3
7623-10-1 5623-04-1 118-48-9
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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