Isoquinoline-1,3,4-trione

Modify Date: 2025-08-26 12:26:36

Isoquinoline-1,3,4-trione Structure
Isoquinoline-1,3,4-trione structure
 Common Name Isoquinoline-1,3,4-trione
CAS Number 521-73-3 Molecular Weight 175.141
Density 1.4±0.1 g/cm3 Boiling Point N/A
Molecular Formula C9H5NO3 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name isoquinoline-1,3,4-trione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Molecular Formula C9H5NO3
Molecular Weight 175.141
Exact Mass 175.026947
PSA 63.24000
LogP 0.27
Index of Refraction 1.609

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NX5123200
CHEMICAL NAME :
1,3,4-(2H)Isoquinolinetrione
CAS REGISTRY NUMBER :
521-73-3
BEILSTEIN REFERENCE NO. :
0383773
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C9-H5-N-O3
MOLECULAR WEIGHT :
175.15

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
RPTOAN Russian Pharmacology and Toxicology (English Translation). Translation of FATOAO. (Euromed Pub., 33, Woodlands Rd., Surbiton, Surrey, UK) V.30- 1967- Volume(issue)/page/year: 41,146,1978

 Safety Information

HS Code 2933499090

 Synthetic Route

1H-Indene-1,2,3-trione structure

1H-Indene-1,2,3...

CAS#:938-24-9

~79%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Yadav; Reddy, B.V. Subba; Reddy, U.V. Subba; Praneeth Tetrahedron Letters, 2008 , vol. 49, # 32 p. 4742 - 4745
3,4-Dihydroisoquinolin-1(2H)-one structure

3,4-Dihydroisoq...

CAS#:1196-38-9

~85%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Yoshifuji; Arakawa Chemical and Pharmaceutical Bulletin, 1989 , vol. 37, # 12 p. 3380 - 3381
Isoquinoline-1,3(2H,4H)-dione structure

Isoquinoline-1,...

CAS#:4456-77-3

~98%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Yoshifuji; Arakawa Chemical and Pharmaceutical Bulletin, 1989 , vol. 37, # 12 p. 3380 - 3381
HOMOPHTHALIC ANHYDRIDE structure

HOMOPHTHALIC AN...

CAS#:703-59-3

~%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Ling, Ke-Qing; Ye, Jia-Hai; Chen, Xian-Yang; Ma, De-Jian; Xu, Jian-Hua Tetrahedron, 1999 , vol. 55, # 30 p. 9185 - 9204
Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

~%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Cornforth, John; Ming-hui, Du Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 5 p. 1463 - 1467
N/A structure

N/A

CAS#:26019-65-8

~%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Cornforth, John; Ming-hui, Du Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 5 p. 1463 - 1467
N/A structure

N/A

CAS#:481-98-1

~%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Gabriel; Colman Chemische Berichte, 1900 , vol. 33, p. 987 Chemische Berichte, 1901 , vol. 34, p. 1654
N/A structure

N/A

CAS#:26019-66-9

~%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Cornforth, John; Ming-hui, Du Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 5 p. 1463 - 1467
2-(Pyrrol-1-ylcarbonyl)benzoic Acid structure

2-(Pyrrol-1-ylc...

CAS#:129339-58-8

~%

Isoquinoline-1,3,4-trione Structure

Isoquinoline-1,...

CAS#:521-73-3

Literature: Cornforth, John; Ming-hui, Du Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 5 p. 1463 - 1467

 Customs

HS Code 2933499090
Summary 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

Isoquinoline-1,3,4-trione
Phthalonimide
1,3,4(2H)-Isoquinolinetrione
Isoquinoline-1,3,4(2H)-trione
3deh
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