Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3A-METHYL-3A,4,7,7A-TETRAHYDROISOBENZOFURAN-1,3-DIONE
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Purity: 98.0%
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42498-58-8

42498-58-8 structure

42498-58-8 structure

Name: 3A-METHYL-3A,4,7,7A-TETRAHYDROISOBENZOFURAN-1,3-DIONE
Chemical Name: 7a-methyl-4,7-dihydro-3aH-2-benzofuran-1,3-dione
CAS Number: 42498-58-8
Molecular Formula: C₉H₁₀O₃
Molecular Weight: 166.17400
Create Date: 2018-12-03 20:45:43
Modify Date: 2024-04-05 10:11:38

Name	7a-methyl-4,7-dihydro-3aH-2-benzofuran-1,3-dione
Synonyms	2,3,5,6-Tetrahydro-2-Methylphthalic Anhydride EINECS 247-830-1 AC 220J Lindride cis-1,3-Dioxo-3a-methyl-4,7-dihydro-phthalan 1,2,3,6-Tetrahydromethylphthalic anhydride MTHPA ZZLA-0334 Epoxy hardener zzla-0334 Phthalic anhydride,methyltetrahydro EINECS 255-853-3 1-methyl-cis-4-cyclohexene-1,2-dicarboxylic anhydride

Density	1.251g/cm3
Boiling Point	292.4ºC at 760mmHg
Molecular Formula	C₉H₁₀O₃
Molecular Weight	166.17400
Flash Point	136.1ºC
Exact Mass	166.06300
PSA	43.37000
LogP	1.04230

CHEMICAL IDENTIFICATION

RTECS NUMBER :: KC9275000

CHEMICAL NAME :: Epoxy hardener zzla-0334

CAS REGISTRY NUMBER :: 42498-58-8

LAST UPDATED :: 199409

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C9-H10-O3

MOLECULAR WEIGHT :: 166.19

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 6/22/1966

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 6/22/1966 ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2460 uL/kg

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

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 6/22/1966

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1590 uL/kg

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

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 6/22/1966

Risk Phrases	61-36/38-43-51/53-62
RIDADR	UN 3082 9/PG 3
WGK Germany	3
HS Code	2932999099

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%