Chemical Name:Cyclopentene
CAS:142-29-0
ID: | 21A3640 |
Classifier: | Ministry of Health, Labour and Welfare (MHLW), Ministry of the Environment (MOE) |
Year Classified: | FY2009 |
Reference Manual: | GHS Classification Guidance by the Japanese Government (March, 2009) |
Hazard class | Classification | Symbol | Signal word | Hazard statement | Precautionary statement | Rationale for the classification | |
---|---|---|---|---|---|---|---|
1 | Explosives | Not applicable | - | - | - | - | There are no chemical groups associated with explosive properties present in the molecules. |
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 2 | Danger | H225: Highly flammable liquid and vapour |
P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. P370+P378: In case of fire: Use ... for extinction. P403+P235: Store in a well-ventilated place. Keep cool. P210: Keep away from heat/sparks/open flames/hot surfaces. - No smoking. P233: Keep container tightly closed. P240: Ground/bond container and receiving equipment. P241: Use explosion-proof electrical/ventilating/lighting/.../equipment. P242: Use only non-sparking tools. P243: Take precautionary measures against static discharge. P280: Wear protective gloves/protective clothing/eye protection/face protection. P501: Dispose of contents/container to ... |
Classified into Category 2 since flash point -29 degC (Ullmanns (E) (6th, 2003) and others) is <23 degC and initial boiling point 44 degC (Ullmanns (E) (6th, 2003)) is >35 degC. The substance is classified into Class 3, PG II in UNRTDG (UN2246). | |
7 | Flammable solids | Not applicable | - | - | - | - | Liquid (GHS definition) |
8 | Self-reactive substances and mixtures | Type G | - | - | - | - | Classified into Type G since the substance is considered not to fall into upper class "Self-reactive substances and mixtures" from which it is classified into Class 3, PG II in UNRTDG (UN2246) though there are chemical groups (orefin) present in the molecule associated with self-reactive properties. |
9 | Pyrophoric liquids | Not classified | - | - | - | - | Auto-ignition point is 395 degC (Ullmanns (E) (6th, 2003)) exceeding 70 degC. |
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 does not contain oxygen, fluorine or chlorine. |
14 | Oxidizing solids | Not applicable | - | - | - | - | Liquid (GHS definition) |
15 | Organic peroxides | Not applicable | - | - | - | - | Organic compounds containing no bivalent -O-O- structure |
16 | Corrosive to metals | Classification not possible | - | - | - | - | Test methods applicable to liquid (low boiling point) substances are not available. |
Hazard class | Classification | Symbol | Signal word | Hazard statement | Precautionary statement | Rationale for the classification | |
---|---|---|---|---|---|---|---|
1 | Acute toxicity (Oral) | Classification not possible | - | - | - | - | Classification not possible due to lack of data. As relevant information, a LD50 value is 2.14 mL/kg (1650 mg/kg) for rats (RTECS (2004)). |
1 | Acute toxicity (Dermal) | Classification not possible | - | - | - | - | Classification not possible due to lack of data. As relevant information, a LD50 value is 1.59 mL/kg (1224 mg/kg) for rabbits (RTECS (2004)). |
1 | Acute toxicity (Inhalation: Gases) | Not applicable | - | - | - | - | Liquid (GHS definition) |
1 | Acute toxicity (Inhalation: Vapours) | Classification not possible | - | - | - | - | Although there is information that 4/6 rats died following exposure at 16,000 ppm for 4-hour (PATTY (5th, 2001)), classification was not possible since determination of category was impossible. Since the exposure concentration was lower than 90% of saturated vapour pressure concentration (5,000,000 ppm, 25 degC), the substance was determined as "vapour with almost no included mists", and classification criteria for gas was adopted. |
1 | Acute toxicity (Inhalation: Dusts and mists) | Classification not possible | - | - | - | - | No data available. |
2 | Skin corrosion/irritation | Classification not possible | - | - | - | - | No data available. |
3 | Serious eye damage/eye irritation | Classification not possible | - | - | - | - | No data available. |
4 | Respiratory sensitization | Classification not possible | - | - | - | - | No data available. |
4 | Skin sensitization | Classification not possible | - | - | - | - | No data available. |
5 | Germ cell mutagenicity | Classification not possible | - | - | - | - | No data available. |
6 | Carcinogenicity | Classification not possible | - | - | - | - | No data available. |
7 | Reproductive toxicity | Classification not possible | - | - | - | - | No data available. |
8 | Specific target organ toxicity - Single exposure | Classification not possible | - | - | - | - | No data available. |
9 | Specific target organ toxicity - Repeated exposure | Classification not possible | - | - | - | - | Based on information that decreased body weight gain was observed at dose level of 8110 ppm/6h/day (22.5 mg/L/6h/day) in a rat 3-week vapour inhalation test (PATTY (5th, 2001)) and that there were no adverse effects at dose level of 1139 ppm/6h/day (3.1 mg/L/6h/day) in a 12-week inhalation test (PATTY (5th, 2001)), the substance corresponds to "Not classified" with inhalation exposure. However, classification was not possible due to lack of data with other exposure routes. |
10 | Aspiration hazard | Classification not possible | - | - | - | - | No data available. |
Hazard class | Classification | Symbol | Signal word | Hazard statement | Precautionary statement | Rationale for the classification | |
---|---|---|---|---|---|---|---|
11 | Hazardous to the aquatic environment (Acute) | Classification not possible | - | - | - | - | No data available. |
11 | Hazardous to the aquatic environment (Long-term) | Classification not possible | - | - | - | - | No data available. |
* 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. |
Reference Manual |
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Definitions / Abbreviations |
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Model Label by MHLW |
MHLW Website (in Japanese Only) |
Model SDS by MHLW |
MHLW Website (in Japanese Only) |