Item | Information |
---|---|
CAS RN | 109-87-5 |
Chemical Name | Methylal |
Substance ID | H26-B-099, - |
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 2 |
Danger |
H225 |
P303+P361+P353
P370+P378 P403+P235 P210 P233 P240 P241 P242 P243 P280 P501 |
It was classified in Category 2 based on a flash point of -30.5 deg C (closed cup) and a boiling point of 42 deg C (GESTIS (Access on September 2014)). Besides, it is classified in Class 3, PG II (UN1234) 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 237 deg C (ICSC (1994)). |
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) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. According to the GHS Classification Guidance for the Japanese Government, data on rabbits in the evidence of the previous classification was deleted, and the category was revised. |
1 | Acute toxicity (Dermal) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. Besides, although there is a report of an LD50 value of >16 mL/kg (13,760 mg/kg) for rabbits (RTECS (Access on October 2014)), it was information from an information source in List 3 and it was not confirmed by an original source, therefore, it was not adopted for classification. |
1 | Acute toxicity (Inhalation: Gases) | Not applicable |
- |
- | - | Liquid (GHS definition) |
1 | Acute toxicity (Inhalation: Vapours) | Not classified |
- |
- | - | Based on a report of an LC50 value (7 hours) of 18,354 ppm (converted 4-hour equivalent value: 24,280 ppm) for mice (ACGIH (7th, 2001)), it was classified as "Not classified." Besides, the LC50 value was lower than 90% of the saturated vapour concentration (434,353 ppm), the reference value in units of ppm was applied as a vapour without a mist. |
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 |
Although there are no reports of specific cases, based on a description that it will irritate the skin (HSDB (Access on September 2014)), it was classified in category 2. |
3 | Serious eye damage/eye irritation | Category 2 |
Warning |
H319 |
P305+P351+P338
P337+P313 P264 P280 |
Based on a description that iritis was observed after application of this substance to rabbits (PATTY (6th, 2012)), it was classified in Category 2. The information was updated, and the category was changed. |
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. |
5 | Germ cell mutagenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. As for in vivo, there are no data. As for in vitro, it was negative in a bacterial reverse mutation test (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 is irritating to the respiratory tract. Additionally, it has been used as an anesthetic in surgical operations (ACGIH (7th, 2001), HSDB (Access on September 2014)). In humans, transitory incoordination and anesthetic action were observed (ACGIH (7th, 2001), HSDB (Access on September 2014)). As for experimental animals, vomiting, cough and anesthesia were observed by inhalation exposure with guinea pigs to 154,000 ppm (ACGIH (7th, 2001), HSDB (Access on September 2014)). From the above, it was classified in Category 3 (respiratory tract irritation, narcotic effects). |
9 | Specific target organ toxicity - Repeated exposure | Classification not possible |
- |
- | - | When mice were exposed to this substance (estimated as the vapour) by inhalation for 15 days, at high concentrations (11,300-14,000 ppm (35.1-43.5 mg/L; 1 ppm=3.11 mg/m3 (ACGIH (7th, 2001)); converted guidance value: 6.83-8.45 mg/L/6 hours)) corresponding to "Not classified," slight irritation, anesthesia, and death were noted (ACGIH (7th, 2001), HSDB (Access on September 2014)), however, it was unknown if there were any hazardous effects within or lower than the range for Category 2. Moreover, since there were no available data for classification, classification was not possible due to lack of data. |
10 | Aspiration hazard | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
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 | - |
- |
- | - | - |
|