GHS Classification Result
GENERAL INFORMATION
REFERENCE INFORMATION
PHYSICAL HAZARDS
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS
NOTES:
Updated date:
GENERAL INFORMATION
| Item | Information |
|---|---|
| CAS number | 1124-11-4 |
| Chemical name | 2,3,5,6-Tetramethylpyrazine |
| Substance ID | 23A5050 |
| 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 |
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 molecule. |
| 2 | Flammable gases （including chemically unstable gases） | Not applicable | - | - | - | "Solids" according to GHS definition. |
| 3 | Aerosols | Not applicable | - | - | - | Not an aerosol product. |
| 4 | Oxidizing gases | Not applicable | - | - | - | "Solids" according to GHS definition. |
| 5 | Gases under pressure | Not applicable | - | - | - | "Solids" according to GHS definition. |
| 6 | Flammable liquids | Not applicable | - | - | - | "Solids" according to GHS definition. |
| 7 | Flammable solids | Classification not possible | - | - | - | No data. |
| 8 | Self-reactive substances and mixtures | Not applicable | - | - | - | Containing neither chemical groups related to explosibility nor those related to self-reactivity. |
| 9 | Pyrophoric liquids | Not applicable | - | - | - | "Solids" according to GHS definition. |
| 10 | Pyrophoric solids | Classification not possible | - | - | - | No data. |
| 11 | Self-heating substances and mixtures | Classification not possible | - | - | - | No established test method suitable for solid substances with a melting point of 140 degrees C or lower. |
| 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 | - | - | - | "Solids" according to GHS definition. |
| 14 | Oxidizing solids | Not applicable | - | - | - | An organic compound that does not contain oxygen, fluorine, or chlorine. |
| 15 | Organic peroxides | Not applicable | - | - | - | An organic compound that does not contain -O-O- structure. |
| 16 | Corrosive to metals | Classification not possible | - | - | - | No established test method suitable for solid substances. |
| Hazard class | Classification |
Symbol Signal word |
Hazard statement | Precautionary statement | Rationale for the classification | |
|---|---|---|---|---|---|---|
| 1 | Acute toxicity （Oral） | Category 4 |  |
H302 |
P301+P312 P264 P270 P330 P501 |
It was classified in Category 4 from an LD50 value of 1900 mg/kg bw for rats (JECFA 1032 (2002)). |
| 1 | Acute toxicity （Dermal） | Classification not possible | - | - | - | No data. |
| 1 | Acute toxicity （Inhalation: Gases） | Not applicable | - | - | - | "Solids" 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, a negative was reported in a bacterial reverse mutation test as an in vitro test (Evaluation of effect for the food safety (2004)). |
| 6 | Carcinogenicity | Classification not possible | - | - | - | No data. |
| 7 | Reproductive toxicity | Classification not possible | - | - | - |
A test in which female rats were orally administrated from 7 days before cohabitation and throughout cohabitation, gestation, parturition, and a 4-day post-parturition period reported that "The only effects reported were reduced body-weight gain in dams at the two higher doses, accompanied by a statistically significant reduction in food consumption in those at the highest dose. No effects were observed in dams at the lowest dose or in offspring at any dose. The authors concluded that tetramethyl-pyrazine had no reproductive or developmental effects" (JECFA 1032 (2002)). But data on developmental effects in the offspring including teratogenicity are insufficient due to no fetal examination data at term pregnancy. In addition, there are no data on sexual function and fertility in male rats, therefore, it was classified as "Classification not possible." |
| 8 | Specific target organ toxicity - Single exposure | Classification not possible | - | - | - | No data. |
| 9 | Specific target organ toxicity - Repeated exposure | Classification not possible | - | - | - |
A 90-day diet administration test given one dose (50 to 55 mg/kg/day) to rats reports that slight to moderate decrease in body-weight gain accompanied by statistically significant decreases in food use efficiency were observed only in females but no pathological lesions were found, and a NOEL was 50 to 55 mg/kg/day (JECFA 1032 (2002)). The dose is in a dose of a range of Guidance values, and effects near the upper limit of Guidance values (100 mg/kg/day) are unknown, therefore it was classified as "Classification not possible." |
| 10 | Aspiration hazard | Classification not possible | - | - | - | No data. |
| 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. |
| 11 | Hazardous to the aquatic environment （Long-term） | Classification not possible | - | - | - | No data. |
| 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:
|
2016/6/29 Addition of Rationale for the classification |