Information on the likely routes of exposure
(Respiratory tracts) Other category
(Oral) Other category
(Eye ∙Skin) Other category
Delayed and immediate effects and also chronic effects from short and long term exposure
Acute toxicity :
Acute oral toxicity :
Rosin LD50 (rat) 7600 mg/kg bw
STP LD50(rat) 2500 mg/kg bw
K3020 LD50(rat) > 5000 mg/kg
Acute dermal toxicity :
Rosin LD50 (rat) 2500 mg/kg bw
STP LD50(rabbit) > 7940 mg/kg bw
K3020 LD50(rabbit) > 2000 mg/kg bw
Acute Inhalation toxicity :
Rosin LD50 (rat) 2.3 mg/l/4hr
Skin corrosion/irritation :
Rosin Mild irritation in the skin irration test using the rats
STP Rabbit, not an irritant
K3020 Rabbit, not an irritant
Serious eye damage/irritation
Rosin Mild irritant property in the eye irration tests using the rats
STP Rabbit, not irritating
K3020 Rabbit, not an irritant
Respiratory sensitization :
Rosin it is listed as a chemical material which causes sensitivity at the
Japanese Society of Occupational allergy.
Skin sensitization
Rosin Cutaneous sensitizing substances in Japan Society for Occupational
Health. There was a casi report of allergic contacr dermatitis in ACGIH
and DFGOT
K3020 Non-sensitization (Guinea pig, Maximization test)
Carcinogenicity :
Not classify to be carcinogenic substance(A1) and carcinogenicsubstance
of presumed(A2) in Public notice.
Germ cell mutagenicity
STP in Vitro, Ames test (Salmonella typhimurium TA)- Negative
DNA damage and repair assay (comet assay)- Positive
K3020 Ames test : Negative
Chromosome Aberration : Negative
Reproductive toxicity :
K3020 A teratology study was performed with rats which received oral
doses of 0, 50,150 or 300 mg/kg/day during days 6-15 ofgestation
While 300 mg/kg was slightly toxic to the mothers, there were no
significant effects on pregnancy or embryo/fetal development
Specific target organ toxicity(single exposure) : Not available
Specific target organ toxicity(repeated exposure) :
STP Rat, no significant toxic efficts were noted.
K3020 During a 28-day oral administration study with rats, an
apparent functional adaptation of the liver occurred in animals
receiving 250 and 1000 mg/kg body weight per day.
The effects included a limited increase in liver
weight(approximately 15 %) and serum alkaline
phosphate(approximately 30 %) without any signs of liver
lesions. The no-observable-effectlevel(NOEL) for these effects
was 50 mg/kg.
A 90-day oral Gavage study was conducted in the rat using
doses of 0, 10,100 and 1000 mg/kg/day. Effects included
hypersalivation and increased liver weight without
histopathologic changes.
The NOAEL is considerd to be 1000mg/kg/day with the NOEL
equal to 10 mg/kg/day.
Aspiration Hazzard : Not available
Calculation the classification of the mixture(acute toxicity estimate calculation etc.) :
Acute oral, dermal and inhalation Toxicity
Acute toxicity estimate(ATEmix) :
100-(ΣCunknown if>10%)/ATEmix=
Acute oral toxicity estimate :
ATEmix = 7297 mg/kg, Not classified
(Contain about above 10% chemical substances of unknown toxicity)
Acute dermal toxicity estimate :
ATEmix = 4563 mg/kg, Not classified
(Contain about above 10% chemical substances of unknown toxicity)
Acute inhalation toxicity estimate
ATEmix = 2.19 mg/l, Category 4
(Contain about above 10% chemical substances of unknown toxicity)