Item | Information |
---|---|
CAS RN | 123-92-2 |
Chemical Name | Acetic acid isopentyl (Isoamyl acetate) |
Substance ID | H26-B-120, - |
Classification year (FY) | FY2014 |
Ministry who conducted the classification | Ministry of Health, Labour and Welfare (MHLW)/Ministry of the Environment (MOE) |
New/Revised | Revised |
Classification result in other fiscal year | FY2006 |
Download of Excel format | Excel file |
Item | Information |
---|---|
Guidance used for the classification (External link) | GHS Classification Guidance for the Japanese Government (FY2013 revised edition) |
UN GHS document (External link) | UN GHS document |
Definitions/Abbreviations (Excel file) | Definitions/Abbreviations |
Model Label by MHLW (External link) | MHLW Website (in Japanese Only) |
Model SDS by MHLW (External link) | MHLW Website (in Japanese Only) |
OECD/eChemPortal (External link) | eChemPortal |
Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
---|---|---|---|---|---|---|
1 | Explosives | Not applicable |
- |
- | - | There are no chemical groups associated with explosive properties present in the molecule. |
2 | Flammable gases (including chemically unstable gases) | Not applicable |
- |
- | - | Liquid (GHS definition) |
3 | Aerosols | Not applicable |
- |
- | - | Not aerosol products. |
4 | Oxidizing gases | Not applicable |
- |
- | - | Liquid (GHS definition) |
5 | Gases under pressure | Not applicable |
- |
- | - | Liquid (GHS definition) |
6 | Flammable liquids | Category 3 |
Warning |
H226 |
P303+P361+P353
P370+P378 P403+P235 P210 P233 P240 P241 P242 P243 P280 P501 |
It was classified in Category 3 based on a flash point of 25 deg C (closed cup) (ICSC (2000)). Besides, it is classified in Class 3, PG III (UN1104) in UNRTDG. |
7 | Flammable solids | Not applicable |
- |
- | - | Liquid (GHS definition) |
8 | Self-reactive substances and mixtures | Not applicable |
- |
- | - | There are no chemical groups present in the molecule associated with explosive or self-reactive properties. |
9 | Pyrophoric liquids | Not classified |
- |
- | - | It is estimated that it does not ignite at normal temperatures from an autoignition temperature of 360 deg C (ICSC (2000)). |
10 | Pyrophoric solids | Not applicable |
- |
- | - | Liquid (GHS definition) |
11 | Self-heating substances and mixtures | Classification not possible |
- |
- | - | Test methods applicable to liquid substances are not available. |
12 | Substances and mixtures which, in contact with water, emit flammable gases | Not applicable |
- |
- | - | The chemical structure of the substance does not contain metals or metalloids (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At). |
13 | Oxidizing liquids | Not applicable |
- |
- | - | The substance is an organic compound containing oxygen (but not fluorine or chlorine) which is chemically bonded only to carbon or hydrogen. |
14 | Oxidizing solids | Not applicable |
- |
- | - | Liquid (GHS definition) |
15 | Organic peroxides | Not applicable |
- |
- | - | Organic compounds containing no bivalent -O-O- structure in the molecule |
16 | Corrosive to metals | Classification not possible |
- |
- | - | No data available. |
Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
---|---|---|---|---|---|---|
1 | Acute toxicity (Oral) | Not classified |
- |
- | - | Based on a report of an LD50 value of 16,600 mg/kg for rats (GESTIS (Access on September 2014) original reference: Yakkyoku. Pharmacy. vol. 32, Pg. 1241, 1981), it was classified as "Not classified." |
1 | Acute toxicity (Dermal) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. Besides, although there was a report of an LD50 value of >5,000 mg/kg for rabbits (GESTIS (Access on September 2014)), it was an information source in List 3, and it could not be classified since the datum could not be confirmed by an original source. Information sources were changed, and the category was revised. |
1 | Acute toxicity (Inhalation: Gases) | Not applicable |
- |
- | - | Liquid (GHS definition) |
1 | Acute toxicity (Inhalation: Vapours) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
1 | Acute toxicity (Inhalation: Dusts and mists) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
2 | Skin corrosion/irritation | Category 2 |
Warning |
H315 |
P302+P352
P332+P313 P362+P364 P264 P280 P321 |
Since there is a description that all amyl acetate compounds including this substance were irritating to the skin (ACGIH (7th, 2001)), it was classified in Category 2. Besides, there is a report that after repeated occlusive application of a 20% solution of this substance to 197 human subjects, no irritation was observed (DFGOT vol. 11 (1996)). In addition, there is a report that slight irritation was observed after application of an isomer mixture containing this substance to the ears of rabbits, and there is a description that after a 4-hour non-occlusive application of 0.5 mL of an isomer mixture to rabbits, moderate erythema and slight edema were observed, and slight desquamation was observed 7 days after application (DFGOT vol. 11 (1996)). Information in ACGIH (7th, 2001) was added and the category was changed. |
3 | Serious eye damage/eye irritation | Category 2 |
Warning |
H319 |
P305+P351+P338
P337+P313 P264 P280 |
Although there was no specific data, there are descriptions that this substance was irritating to the eyes (HSDB (Access on September 2014)), and that isomers of this substance were irritating to the eyes (ACGIH (2001), DFGOT vol. 11 (1996)). From the above results, it was classified in Category 2. Besides, there is a report that after application of the isomer (1-pentyl acetate) of this substance to the eyes of rabbits, it was slightly irritating (irritation rating: 2/10) to the eyes of rabbits (ACGIH (2001)). The category was changed since adequate information was not obtained for sub-categorization. |
4 | Respiratory sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
4 | Skin sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. Besides, there is a report that no sensitization was observed after application of this substance to 197 human subjects (DFGOT vol. 11 (1996)). However, it is described that a considerable loss of the test substance seemed to occur due to evaporation when applied. In addition, there is a description that in a maximization test with guinea pigs using an isomer mixture (including 5% of this substance), the sensitization potential of the isomer mixture containing this substance was slight (DFGOT vol. 11 (1996)). |
5 | Germ cell mutagenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. There was no in vivo data. As for in vitro, it was negative in bacterial reverse mutation tests, a mouse lymphoma assay and a chromosomal aberration test with cultured mammalian cells (ACGIH (7th, 2001), DFGOT vol. 11 (1998), NTP DB (Access on October 2014)). |
6 | Carcinogenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
7 | Reproductive toxicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
8 | Specific target organ toxicity - Single exposure | Category 3 (respiratory tract irritation, narcotic effects) |
Warning |
H335
H336 |
P304+P340
P403+P233 P261 P271 P312 P405 P501 |
This substance was irritating to the respiratory tract (PATTY (6th, 2012), DFGOT vol. 11 (1998), HSDB (Access on September 2014)). In humans, on inhalation exposure, headache, weakness and central nervous system depression, and at the high concentration unconsciousness were observed (PATTY (6th, 2012), HSDB (Access on September 2014)), and as for experimental animals, on exposure to this substance or the isomer mixtures, central nervous system depression such as narcotic effects, labored breathing, ataxia and loss of righting reflex in rats and mice, etc. were observed (PATTY (6th, 2012), ACGIH (7th, 2001), DFGOT vol. 11 (1998), OEL Documentations (Japan Society For Occupational Health (JSOH), 2008), HSDB (Access on September 2014)). From the above, since this substance was considered to have respiratory tract irritation and narcotic effects, it was classified in Category 3 (respiratory tract irritation, narcotic effects). Besides, the central nervous system depression effects observed with this substance was regarded as narcotic effects. |
9 | Specific target organ toxicity - Repeated exposure | Category 1 (optic nerve) |
Danger |
H372 |
P260
P264 P270 P314 P501 |
Although there are no reports in either humans or experimental animals in which the effects by repeated exposure to this substance itself were made clear, there were the following findings regarding the effects by exposure to isomer mixtures containing this substance. In humans, there is a report that irritation to the eyes and photophobia were observed in workers exposed to pentyl acetate (details unknown) for 1 month-30 years (ACGIH (7th, 2001), OEL Documentations (Japan Society For Occupational Health (JSOH), 2008)). In addition, 30 workers who engaged in film production and were exposed to pentyl acetate mixtures (details unknown) at concentrations of 3,700-14,800 ppm (20-80 mg/L), complained of sensitivity to light, conjunctival irritation and lacrimation at work, and in 4 of them who engaged for 4-9 years, the symptoms were severe, and narrowing of the field of vision and atrophic changes of the visual nerve were observed (DFGOT vol. 11 (1998)). As for experimental animals, there is a description that degeneration of the optic nerve was observed in a test in which rabbits were exposed by inhalation to a pentyl acetate mixture (details unknown) at 7,500 ppm for 60 days (DFGOT vol. 11 (1998)), therefore, it was considered a finding that supported effect on the optic nerve in humans. From the above, this substance was also classified in Category 1 (optic nerve) as well as other isomers (2-methylbutyl acetate (CAS RN 624-41-9; ID: 121), n-pentyl acetate (CAS RN 628-63-7; ID: 122)) since disorder of the optic nerve was observed in pentyl acetate mixtures. |
10 | Aspiration hazard | Classification not possible |
- |
- | - | - |
Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
---|---|---|---|---|---|---|
11 | Hazardous to the aquatic environment (Acute) | - |
- |
- | - | - |
11 | Hazardous to the aquatic environment (Long-term) | - |
- |
- | - | - |
12 | Hazardous to the ozone layer | - |
- |
- | - | - |
|