NITE - Chemical Management Field

GHS Classification Result

Chemical Name：4-methyloxetan-2-one; (+/-)-4-methyloxetan-2-one
CAS：3068-88-0,36536-46-6

Result：


ID:	943
Classifier:	Inter-ministerial Committee on GHS
Year Classified:	FY2006
Reference Manual:	GHS Classification Manual （10 Feb, 2006）

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	Classification not possible	-	-	-	-	No data available
7	Flammable solids	Not applicable	-	-	-	-	Liquid (GHS definition)
8	Self-reactive substances and mixtures	Not applicable	-	-	-	-	There are no chemical groups associated with explosive or self-reactive properties present in the molecule.
9	Pyrophoric liquids	Classification not possible	-	-	-	-	No data available
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 metaloids(B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At).
13	Oxidizing liquids	Not applicable	-	-	-	-	Organic compounds containing oxygen (but not chlorine and fluorine) chemically bonded only to carbon and hydrogen (but not to other elements).
14	Oxidizing solids	Not applicable	-	-	-	-	Liquid (GHS definition)
15	Organic peroxides	Not applicable	-	-	-	-	Containing no -0-0- 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	-	-	-	-	Rat LD50 value: 17200 uL/kg (reduced values of 18150mg/kg) (RTECS, 2005). Based on this data, it was considered as out of category.
1	Acute toxicity （Dermal）	Not classified	-	-	-	-	Based on rabbit LD50 value: >20mL/kg (reduced value > 21110mg/kg) (RTECS, 2005), it was set as the outside of Category.
1	Acute toxicity （Inhalation: Gases）	Not applicable	-	-	-	-	Liquid (GHS definition)
1	Acute toxicity （Inhalation: Vapours）	Classification not possible	-	-	-	-	No data available
1	Acute toxicity （Inhalation: Dusts and mists）	Classification not possible	-	-	-	-	No data available
2	Skin corrosion/irritation	Category 2		Warning	H315: Causes skin irritation	P302+P352: IF ON SKIN: Wash with plenty of soap and water. P332+P313: If skin irritation occurs: Get medical advice/attention. P264: Wash ... thoroughly after handling. P280: Wear protective gloves/protective clothing/eye protection/face protection. P321: Specific treatment （see ... on this label）. P362: Take off contaminated clothing and wash before reuse.	It was set as Category 2 from description that the moderate irritation was acknowledged by application on the skin of the rabbit (RTECS (2005)).
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	Category 2		Warning	H341: Suspected of causing genetic defects	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 ...	Although there is a positive result (RTECS, 2005) by the micronucleus test which used the mouse erythrocyte, which is the in vivo mutagenicity tests using a somatic, there was no in vivo genotoxicity study data using a germ cell. So it was set as Category 2.
6	Carcinogenicity	Category 2		Warning	H351: Suspected of causing cancer	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 ...	Since it was classified into group 2B (IARC 71, 1999) in IARC and 2B in Japan Assoc. of Industrial Health (industrial hygene academic society recommentation, 2005), it was considered as Category 2.
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	-	-	-	-	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