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| CAS No.: | 42498-58-8 |
|---|---|
| Name: | 2,3,5,6-tetrahydro-2-methylphthalic anhydride |
| Article Data: | 6 |
| Molecular Structure: | |
|
|
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| Formula: | C9H10 O3 |
| Molecular Weight: | 166.177 |
| Synonyms: | 4-Cyclohexene-1,2-dicarboxylicanhydride, 1-methyl- (6CI); 1-Methyltetrahydrophthalic anhydride; ZZLA 0334 |
| Density: | 1.251g/cm3 |
| Boiling Point: | 292.4°Cat760mmHg |
| Flash Point: | 136.1°C |
| Risk Codes: | R61; R36/38; R43; R51/53; R62 |
| Safety: | Moderately toxic by ingestion and skin contact. A skin and severe eye irritant. |
| PSA: | 43.37000 |
| LogP: | 1.04230 |
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Chemistry
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
.
Uses
Epoxy hardener zzla-0334 (CAS NO.42498-58-8) is used as organic intermediate .
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. |
Safety Profile
Moderately toxic by ingestion and skin contact. A skin and severe eye irritant.
Hazard Codes: 
Xn
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