NITE - Chemical Management Field

GHS Classification Result

Chemical Name：Dibenzo[b,d]thiophene
CAS：132-65-0

Result：


ID:	22A4288
Classifier:	Ministry of Health, Labour and Welfare （MHLW）, Ministry of the Environment （MOE）
Year Classified:	FY2010
Reference Manual:	GHS Classification Guidance by the Japanese Government （July, 2010）

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 molecule.
2	Flammable gases （including chemically unstable gases）	Not applicable	-	-	-	-	Solid (GHS definition)
3	Aerosols	Not applicable	-	-	-	-	Not aerosol products.
4	Oxidizing gases	Not applicable	-	-	-	-	Solid (GHS definition)
5	Gases under pressure	Not applicable	-	-	-	-	Solid (GHS definition)
6	Flammable liquids	Not applicable	-	-	-	-	Solid (GHS definition)
7	Flammable solids	Classification not possible	-	-	-	-	Classification is not possible since no data are available though the substance is reported as Combustible solid. (GESTIS (Access on Jan. 2011)).
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 applicable	-	-	-	-	Solid (GHS definition)
10	Pyrophoric solids	Not classified	-	-	-	-	Since there is the data that its autoignition temperature is > 450 degC (GESTIS (Access on Jan. 2011)), it is considered that the substance does not ignite at room temperature.
11	Self-heating substances and mixtures	Classification not possible	-	-	-	-	Test methods applicable to solid (melting point <= 140 degC) 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	-	-	-	-	Solid (GHS definition)
14	Oxidizing solids	Not applicable	-	-	-	-	Organic compounds containing no oxygen, fluorine or chlorine
15	Organic peroxides	Not applicable	-	-	-	-	Organic compounds containing no bivalent -O-O- structure
16	Corrosive to metals	Classification not possible	-	-	-	-	Test methods applicable to solid substances are not available.

HEALTH HAZARDS

Hazard class		Classification	Symbol	Signal word	Hazard statement	Precautionary statement	Rationale for the classification
1	Acute toxicity （Oral）	Category 4		Warning	H302: Harmful if swallowed	P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P264: Wash ... thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P330: Rinse mouth. P501: Dispose of contents/container to ...	Based on the mouse LD50 value of 470 mg/kg (HSDB (2006)), the substance was classified into Category 4.
1	Acute toxicity （Dermal）	Classification not possible	-	-	-	-	No data available.
1	Acute toxicity （Inhalation: Gases）	Not applicable	-	-	-	-	Solid (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	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 were available. As relevant information, very weak or no mutagenicity was reported in the tests using Salmonella for some substances of polycyclic aromatic hetero compounds including this substance (HSDB (2006)).
6	Carcinogenicity	Classification not possible	-	-	-	-	No data available.
7	Reproductive toxicity	Classification not possible	-	-	-	-	No data available.
8	Specific target organ toxicity - Single exposure	Category 2 (central nervous system, liver)		Warning	H371: May cause damage to organs (central nervous system, liver)	P309+P311: IF exposed or if you feel unwell: Call a POISON CENTER or doctor/physician. P260: Do not breathe dust/fume/gas/mist/vapours/spray. P264: Wash ... thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P405: Store locked up. P501: Dispose of contents/container to ...	In the acute oral toxicity study in mice, the LD50 value was 470 mg/kg and abnormal behavior occurred within 2 hours after administration. The changes of clinical signs ranged from general sluggishness at lower dose levels to full anesthesia accompanied by loss of righting reflex and disappearance of the sense of touch at 325 mg/kg or higher. The survivors returned to normal within 24 hours, and the rats treated at 1600 mg/kg or higher persisted coma prior to death (HSDB (2006), the original literature: Leighton FA; Fundam. Appl. Toxicol. 12 (4), 787-792 (1992)). While, it was reported that the substance was potent hepatotoxin and caused serious centrilobular or perilobular necrosis in the liver, which was commonly seen in the substances converted into toxic metabolites in the body (HSDB (2006), the original literature: Leighton FA; Fundam. Appl. Toxicol. 12 (4), 787-792 (1992)). As stated above, the findings after oral administration to mice were observed at the dose levels equivalent to Category 2 of the guidance values. Based on the toxic signs and histopathological changes in the liver, the substance was classified as Category 2 (central nervous system, liver).
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）	Category 1		Warning	H400: Very toxic to aquatic life	P273: Avoid release to the environment. P391: Collect spillage. P501: Dispose of contents/container to ...	Classified into Category 1 from its 48h-EC50 = 0.44 mg/L for crustacea (Daphnia magna) (Test for the Ecological Effect of Chemical Substances (Ministry of the Environment), 1997).
11	Hazardous to the aquatic environment （Long-term）	Category 1		Warning	H410: Very toxic to aquatic life with long lasting effects	P273: Avoid release to the environment. P391: Collect spillage. P501: Dispose of contents/container to ...	Classified into Category 1 since its acute toxicity is Category 1 and it is not rapidly degradable (Non-biodegradable, BOD degradation rate: 0% (Biodegradation and Bioconcentration of Existing Chemical Substances under the Chemical Substances Control Law, 1990)).
12	Hazardous to the ozone layer	Classification not possible	-	-	-	-	This substance is not listed in Annexes to the Montreal Protocol.

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）