Benzene, 1,3,5-trimethyl-

Substance overview Plus
Name:
Benzene, 1,3,5-trimethyl-
CAS Number:
108-67-8
Synonyms:
1,3,5-Trimethylbenzene, 3,5-Dimethyltoluene, Mesitylene, Sym-trimethylbenzene
Approval number:
HSR001229, Approved with controls
UN Class:
Class 3: Flammable liquids; Packing group III: Substances presenting low danger
UN Number:
2325
Molecular weight:
120.19
Relative density:
0.8637
Water solubility:
48.2 mg/L
Classification Flam. Liquid 3 Plus
Classification route species:
 
Classification description:
H226: Flammable liquid and vapour.
Classification key study:
Flash point: 50 °C
Boiling point: 165 °C
Classification Eye Irrit. 2 Plus
Classification route species:
 
Classification description:
H319: Causes serious eye irritation.
Classification key study:

Skin Irritation
SPECIES: Rabbit
RESULT: Moderate
REFERENCE SOURCE: Prehled Prumyslove Toxikologie; Organicke Latky, Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 (-,34,1986). [RTECS]

Eye Irritation
SPECIES: Rabbit
RESULT: Mild
REFERENCE SOURCE: Prehled Prumyslove Toxikologie; Organicke Latky, Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 (-,34,1986). [RTECS]

Classification Aquatic Chronic 2 Plus
Classification route species:
 
Classification description:
H411: Toxic to aquatic life with long lasting effects.
Classification key study:
Bioaccumulation: Bioaccumulative: No
BCF values of 23-342 and 42-328 were measured in carp for mesitylene concentrations of 150 and 15 ug/l, respectively(1). According to a classification scheme(2), these BCF values suggest that bioconcentration in aquatic organisms may occur(SRC). [(1) Chemicals Inspection and Testing Institute; Biodegradation and Bioaccumulation Data of Existing Chemicals Based on the CSCL Japan. Japan Chemical Industry Ecology - Toxicology and Information Center. ISBN 4-89074-101-1 (1992) (2) Franke C et al; Chemosphere 29: 1501-14 (1994)]**PEER REVIEWED**[HSDB]

Biodegradation in water: not biodegradable
Long term toxicity to invertebrates: ACUTE
SPECIES: Daphnia magna (Water flea)
TYPE OF EXPOSURE:
DURATION: 48 hr
ENDPOINT: EC50
VALUE: 6 mg/l
REFERENCE SOURCE: Anonymous, TA:Beratergremium fuer umweltrelevante Altstoffe (BUA) PG:62 p YR:1992 IP: VI:46
CHRONIC
SPECIES: Daphnia magna (Water flea)
TYPE OF EXPOSURE:
DURATION: 21 day
ENDPOINT: NOEC
VALUE: 0.400mg/L
REFERENCE SOURCE: Ref No: 847. Kuhn, R., M. Pattard, K.Pernak, and A. Winter (1989) Results of the Harmful Effects of Water Pollutants to Daphnia magna in the 21 Day Reproduction Test . Water Res. 23(4):501-510. [ECOTOX]

Toxicity to freshwater algae and cyanobacteria: SPECIES: Scenedesmus subspicatus
TYPE OF EXPOSURE:
DURATION: 2 day (48 hr)
ENDPOINT: EC50 (Biomass)
VALUE: 25.000 mg/L
REFERENCE SOURCE: Ref No: 2997. Kuhn,R. and M.Pattard (1990) Results of the Harmful Effects of Water Pollutants to Green Algae (Scenedesmus subspicatus) in the Cell Multiplication Inhibition Test. Water Res. 24(1):31-38, [ECOTOX]