GHS Classification Result

Chemical Name:dimethyl carbonate
CAS:616-38-6

Result:
ID: 20A2124
Classifier: Ministry of Health, Labour and Welfare (MHLW), Ministry of the Environment (MOE)
Year Classified: FY2008
Reference Manual: GHS Classification Guidance by the Japanese Government (Sep, 2008)

PHYSICAL HAZARDS
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 ...
Since its flash point is 14degC (c.c.) (Ullmanns (E) (6th, 2003)), which is below 23degC, and its boiling point is approximately 90degC (Merck (14th, 2006)), the substance was classified into Category 2. As relevant information, it fits in Class 3, Packing group II in UN classification.
7 Flammable solid 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 - - - - Its autoignition point is 485degC (ICSC (J) (2005)), which is above 70degC.
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 contains 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
16 Corrosive to metals Classification not possible - - - - No data available.

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity (Oral) Not classified - - - - Based on its LD50 = 6400 - 12800 mg/kg for rats (PATTY (5th, 2001)), the substance was classified into "Not classified".
1 Acute toxicity (Dermal) Not classified - - - - Based on its LD50 > 2500 mg/kg for rats (IUCLID (2000)), the substance was classified into "Not classified".
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Liquid (GHS definition)
1 Acute toxicity (Inhalation: Vapours) Classification not possible - - - - Its LC100 = 8000 ppm/2h = 5656 ppm/4h for rats (PATTY (5th, 2001)) and its LC50 >= 140 mg/L/4h for rats (IUCLID (2000)) are known. However, they are conflicting, and classification is not possible.
1 Acute toxicity (Inhalation: Dusts and mists) Classification not possible - - - - No data available.
2 Skin corrosion/irritation Not classified - - - - Although details of such matters as the testing method are not indicated, based on the results that in a test using rabbits and rats, the substance was not irritating (IUCLID (2000)), the substance was classified into "Not classified".
3 Serious eye damage/eye irritation Classification not possible - - - - It is described that in a test using rabbits, the substance was slightly irritating (IUCLID (2000)). However, since the test does not provide the testing method, details of the results, or details of the literature, the substance was classified into "Classification not possible".
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 Category 2 Warning H361: Suspected of damaging fertility or the unborn child P308+P313: IF exposed or concerned: Get medical advice/attention.
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P281: Use personal protective equipment as required.
P405: Store locked up.
P501: Dispose of contents/container to ...
Pregnant female mice were exposed by inhalation to 0, 300, 1000, or 3000 ppm during gestational days 6 - 15. At the dose of 3000 ppm, reduced maternal body weight gain, food consumption as well as increased postimplantation loss due to increased resorption and increased number of stunted fetuses were observed (HSDB (2003)). Furthermore, at the same dose, total incidences of fetal malformations including cleft palate, microtia, and multiple skull bone malformations were significantly increased (HSDB (2003)). As described above, the dose that caused general toxic effects such as reduced body weight gain in parental animals, affected reproduction and fetal development; for instance, incidences of fetal malformation increased, which appeared to be especially significant. Based on these results, the substance was classified into Category 2.
8 Specific target organ toxicity - Single exposure Category 3 (Narcotic effects) Warning H336: May cause drowsiness or dizziness (narcotic effects) P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P405: Store locked up.
P501: Dispose of contents/container to ...
The association between the doses and signs after oral administration to rats is not clear, but since it is described that symptoms were weakness, ataxia with gasping, and unconsciouness (PATTY (5th, 2001)), effects on the nervous system are suspected. And as signs after inhalation exposure at 8000 ppm above the guidance value of Category 2 for two hours (conversion, 20.8 mg/L/4h), gasping, loss of coordination, and pulmonary edema were seen and all the rats died in a period of two hours (PATTY (5th, 2001)). Therefore, the substance was classified into Category 3 (narcotic effects).
9 Specific target organ toxicity - Repeated exposure Classification not possible - - - - No data available.
10 Aspiration hazard Classification not possible - - - - No data available.

ENVIRONMENTAL HAZARDS
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.


NOTE:
* 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:
Reference Manual

Definitions / Abbreviations

Model Label by MHLW

MHLW Website (in Japanese Only)

Model SDS by MHLW

MHLW Website (in Japanese Only)


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