Product Name

  • Name

    2,3,5,6-tetrahydro-2-methylphthalic anhydride

  • EINECS
  • CAS No. 42498-58-8
  • Article Data6
  • CAS DataBase
  • Density 1.251g/cm3
  • Solubility
  • Melting Point
  • Formula C9H10 O3
  • Boiling Point 292.4°Cat760mmHg
  • Molecular Weight 166.177
  • Flash Point 136.1°C
  • Transport Information
  • Appearance
  • Safety Moderately toxic by ingestion and skin contact. A skin and severe eye irritant.
  • Risk Codes R61; R36/38; R43; R51/53; R62
  • Molecular Structure Molecular Structure of 42498-58-8 (2,3,5,6-tetrahydro-2-methylphthalic anhydride)
  • Hazard Symbols
  • Synonyms 4-Cyclohexene-1,2-dicarboxylicanhydride, 1-methyl- (6CI); 1-Methyltetrahydrophthalic anhydride; ZZLA 0334
  • PSA 43.37000
  • LogP 1.04230

Epoxy hardener zzla-0334 Chemical Properties

IUPAC  Name: 7a-Methyl-4,7-dihydro-3aH-2-benzofuran-1,3-dione   
Molecular Formula: C9H10O3
Molecular Weight: 166.19
Freely Rotating Bonds: 1
Polar Surface Area: 43.37 Å2
Index of Refraction: 1.53
Molar Refractivity: 41.02 cm3
Molar Volume: 132.7 cm3
Polarizability: 16.26 ×10-24 cm3
Surface Tension: 45 dyne/cm
Density: 1.251 g/cm3
Flash Point: 136.1 °C
Enthalpy of Vaporization: 53.19 kJ/mol
Boiling Point: 292.4 °C at 760 mmHg
Vapour Pressure: 0.00184 mmHg at 25°C 
The Cas Register Number of Epoxy hardener zzla-0334 is 42498-58-8.The chemical synonyms of Epoxy hardener zzla-0334 (CAS NO.42498-58-8) are 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-3a-methyl- ; 3a-Methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione  and 1,2,3,6-Tetrahydromethylphthalic anhydride .The molecular structure of Epoxy hardener zzla-0334 (CAS NO.42498-58-8) is.

Epoxy hardener zzla-0334 Uses

 Epoxy hardener zzla-0334 (CAS NO.42498-58-8) is used as organic intermediate .

Epoxy hardener zzla-0334 Toxicity Data With Reference

1.    

skn-rbt 500 mg open MLD

     UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 6/22 ,1966.
2.    

eye-rbt 1 mg SEV

     UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 6/22 ,1966.
3.    

orl-rat LD50:2460 mg/kg

     UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 6/22 ,1966.
4.    

skn-rbt LD50:1590 mg/kg

     UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 6/22 ,1966.

Epoxy hardener zzla-0334 Safety Profile

Moderately toxic by ingestion and skin contact. A skin and severe eye irritant.
Hazard Codes: HarmfulXn
Risk Statements: 61-36/38-43-51/53-62 
R61: May cause harm to the unborn child. 
R36/38: Irritating to eyes and skin. 
R43: May cause sensitization by skin contact. 
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R62: Risk of impaired fertility.
Safety Statements: 53-26-36/37-45-61 
S53: Avoid exposure - obtain special instructions before use. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37: Wear suitable protective clothing and gloves. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3082 9/PG 3
WGK Germany: 3
F: 21

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