GHS Classification Result
GENERAL INFORMATION
REFERENCE INFORMATION
PHYSICAL HAZARDS
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS
NOTES:
Updated date:
GENERAL INFORMATION
| Item | Information |
|---|---|
| CAS number | 691-37-2 |
| Chemical name | 4-Methyl-1-pentene |
| Substance ID | 23A5034 |
| Fiscal year of classification conducted | FY2011 |
| Classifier(s) (Ministries) | Ministry of Health, Labour and Welfare （MHLW）, Ministry of the Environment （MOE） |
| New/Revised | New |
| Download in Excel format | Excel file |
| Item | Information |
|---|---|
| Guidance used for classification (External link) |
Physical Hazards & Health Hazards: GHS Classification Guidance by the Japanese Government （July, 2010）
Environmental Hazards: UN GHS Document （4th revised edition） |
| 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 (Code: symbol) Signal word |
Code (Hazard statement) |
Code (Precautionary statement) |
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 | - | - | - | "Liquids" according to GHS definition. |
| 3 | Aerosols | Not applicable | - | - | - | Not an aerosol product. |
| 4 | Oxidizing gases | Not applicable | - | - | - | "Liquids" according to GHS definition. |
| 5 | Gases under pressure | Not applicable | - | - | - | "Liquids" according to GHS definition. |
| 6 | Flammable liquids | Category 2 |  |
H225 |
P303+P361+P353 P370+P378 P403+P235 P210 P233 P240 P241 P242 P243 P280 P501 |
A flash point of -7 degrees C [closed cup] (Bretherick (7th, 2007)), which is < 23 degrees C, and an initial boiling point of 53.9 (Lide (90th, 2009)) degrees C, which is > 35 degrees C, correspond to Category 2. Besides, it is classified in class 3PGII in UNRTDG (UN2288). |
| 7 | Flammable solids | Not applicable | - | - | - | "Liquids" according to GHS definition. |
| 8 | Self-reactive substances and mixtures | Type G | - | - | - | There is a chemical group present in the molecule associated with a self-reactive property (unsaturated bond), but it was concluded from Class 3 in UNRTDG (UN2288) which does not correspond to a higher self-reactive property (class 4.1, PGI) that it is classified in Type G. |
| 9 | Pyrophoric liquids | Not classified | - | - | - | It is conceivable that it does not ignite at normal temperatures from an ignition temperature of 300 degrees C (Ullmanns (E) (6th, 2003)). |
| 10 | Pyrophoric solids | Not applicable | - | - | - | "Liquids" according to GHS definition. |
| 11 | Self-heating substances and mixtures | Classification not possible | - | - | - | No established test method suitable for liquid substances. |
| 12 | Substances and mixtures which, in contact with water, emit flammable gases | Not applicable | - | - | - | Not containing metals or semimetals (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At). |
| 13 | Oxidizing liquids | Not applicable | - | - | - | An organic compound that does not contain oxygen, fluorine, or chlorine. |
| 14 | Oxidizing solids | Not applicable | - | - | - | "Liquids" according to GHS definition. |
| 15 | Organic peroxides | Not applicable | - | - | - | An organic compound that does not contain -O-O- structure. |
| 16 | Corrosive to metals | Not classified | - | - | - | Steel, stainless steel, and aluminum are durable as a container (Hommel (1985)), |
| Hazard class | Classification |
Pictogram (Code: symbol) Signal word |
Code (Hazard statement) |
Code (Precautionary statement) |
Rationale for the classification | |
|---|---|---|---|---|---|---|
| 1 | Acute toxicity （Oral） | Not classified | - | - | - | From an LD50 value of >2000 mg/kg and no death at a dose of 2000 mg/kg in rats (OECD TG423, GLP compliance) (Report on Toxicity Tests of Chemical Substances, MHLW (2007)), it was classified as "Not classified." |
| 1 | Acute toxicity （Dermal） | Classification not possible | - | - | - | No data. |
| 1 | Acute toxicity （Inhalation: Gases） | Not applicable | - | - | - | "Liquids" according to GHS definition. |
| 1 | Acute toxicity （Inhalation: Vapours） | Classification not possible | - | - | - | No data. |
| 1 | Acute toxicity （Inhalation: Dusts and mists） | Classification not possible | - | - | - | No data. |
| 2 | Skin corrosion/irritation | Classification not possible | - | - | - | No data. |
| 3 | Serious eye damage/eye irritation | Classification not possible | - | - | - | No data. |
| 4 | Respiratory sensitization | Classification not possible | - | - | - | No data. |
| 4 | Skin sensitization | Classification not possible | - | - | - | No data. |
| 5 | Germ cell mutagenicity | Classification not possible | - | - | - |
The classification is not possible due to no in vivo test data. Besides, negative results were reported in both an Ames test and a chromosomal aberration test using Chinese hamster lung derived cells (Report on Toxicity Tests of Chemical Substances, MHLW (Access on May 2011)) as in vitro tests. |
| 6 | Carcinogenicity | Classification not possible | - | - | - | No data. |
| 7 | Reproductive toxicity | Classification not possible | - | - | - |
In an oral administration combined repeated dose toxicity test with reproduction/developmental toxicity screening test in rats (OECD TG422, GLP compliance), dose-related changes in sex function and fertility such as sex cycle in females, indices of mating, fertility, birth, implantation, and delivery in all groups were not found. Adverse effects on the development of the offspring such as a number and sex ratio of offspring born, a number of live offspring and live birth index on lactation day 0, a number of live offspring, and viability index on lactation day 4 were not observed. (Report on Toxicity Tests of Chemical Substances, MHLW (Access on May 2011)) But, there are no fetal data at the end of a gestation period, it was classified as "Classification not possible" due to lack of data on effects on the development of the offspring including teratogenicity. |
| 8 | Specific target organ toxicity - Single exposure | Classification not possible | - | - | - |
In an oral administration test given 300 or 2000 mg/kg to rats (OECD TG423, GLP compliance), neither mortality nor abnormalities in clinical signs and necropsy were found. (Report on Toxicity Tests of Chemical Substances, MHLW (Access on May 2011)) But blood biochemical test and histological test were not conducted. Therefore, it was classified as "Classification not possible" due to lack of data. |
| 9 | Specific target organ toxicity - Repeated exposure | Classification not possible | - | - | - |
In an oral administration combined repeated dose toxicity test with reproduction/developmental toxicity screening test in rats given 40, 200, 1000 mg/kg/day (OECD TG422, GLP), adverse effects were not found except for increased urea nitrogen at a dose of 1000 mg/kg in females, and slight dose-dependent increases in the hyaline droplet and eosinophilic body in the proximal tubular epithelium in the kidney at doses of 200mg/kg or higher in males. (Report on Toxicity Tests of Chemical Substances, MHLW (Access on May 2011)) Accordingly, no adverse effects at a high dose of 1000 mg/kg/day (converted to 90-day equivalent volume: 446.7 mg/kg/day) as a result correspond to "Not classified" in an oral route. However, it was classified as "Classification not possible" in specific target organ toxicity (repeated exposures) because effects in other routes (inhalation, dermal) are unknown due to no data. |
| 10 | Aspiration hazard | Classification not possible | - | - | - | No data. |
| Hazard class | Classification |
Pictogram (Code: symbol) Signal word |
Code (Hazard statement) |
Code (Precautionary statement) |
Rationale for the classification | |
|---|---|---|---|---|---|---|
| 11 | Hazardous to the aquatic environment （Acute） | Not classified | - | - | - | Because acute toxicity data for algae, crustacea, and fish in concentrations around the water solubility were not reported (Results of Eco-toxicity tests of chemicals conducted by Ministry of the Environment in Japan (2003)), it was classified as "Not classified." |
| 11 | Hazardous to the aquatic environment （Long-term） | Not classified | - | - | - |
If chronic toxicity data are used, then it is classified as "Not classified" because chronic toxicity data in concentrations up to the water solubility were not reported (Results of Eco-toxicity tests of chemicals conducted by Ministry of the Environment in Japan (2003)) despite lack of rapid degradability (hardly degradable, a degradation rate by BOD: 1 % (the existing chemicals survey program, 2005)). If acute toxicity data are used for a trophic level for which chronic toxicity data are not available, then it is classified as "Not classified" from 96-hour LC50 => 0.076 mg/L for fish (Oryzias latipes) (Results of Eco-toxicity tests of chemicals conducted by Ministry of the Environment in Japan (2003)), and it is classified as "Not classified" from poor water solubility (measured water solubility: 48 mg/L (PHYSPROP Database, 2012)) and low bioaccumulation (low bioaccumulative: log Kow＞3.38 (the existing chemicals survey program, 2005)) but lack of rapid degradability (hardly degradable, a degradation rate by BOD: 1 % (the existing chemicals survey program, 2005)). From the above results, it was classified as "Not classified." |
| 12 | Hazardous to the ozone layer | Classification not possible | - | - | - | This substance is not listed in Annexes to the Montreal Protocol. |
NOTES:
|
* Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users. * This is a provisional English translation of classification results and is subject to revision without notice. * The responsibility for any resulting GHS labelling and SDS referenced from this site is with users. |
Updated date:
|
2016/10/13 Addition of Rationale for the classification |