NITE - Chemical Management Field

Latest GHS Classification Results by the Japanese Government (edited by NITE)

GENERAL INFORMATION

Item	Information
CAS RN	89-83-8
Chemical Name	thymol
Substance ID	m-nite-89-83-8_v2
Download of Excel format	Excel file

REFERENCE INFORMATION

Item	Information
Guidance used for the classification (External link)	To Guidance List
UN GHS document (External link)	To UN GHS document
FAQ（GHS classification results by the Japanese Government）	To FAQ
List of Information Sources (Excel file)	List of Information Sources
List of Definitions/Abbreviations	Definitions/Abbreviations
Sample Label by MHLW (External link)	MHLW Website (in Japanese Only)
Sample SDS by MHLW (External link)	MHLW Website (in Japanese Only)
OECD/eChemPortal (External link)	To OECD/eChemPortal (External link)

PHYSICAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
1	Explosives	Not classified (Not applicable)	- -	-	-	There are no chemical groups associated with explosive properties present in the molecules.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
2	Flammable gases	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
3	Aerosols	Not classified (Not applicable)	- -	-	-	Not aerosol products.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
4	Oxidizing gases	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
5	Gases under pressure	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
6	Flammable liquids	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
7	Flammable solids	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
8	Self-reactive substances and mixtures	Not classified (Not applicable)	- -	-	-	There are no chemical groups present in the molecule associated with explosive or self-reactive properties.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
9	Pyrophoric liquids	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
10	Pyrophoric solids	Not classified	- -	-	-	Its autoignition point is 285degC (Chemical Risk Information Platform (CHRIP) (accessed in 2008)), which is above 70degC.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
11	Self-heating substances and mixtures	Classification not possible	- -	-	-	Test methods applicable to solid (melting point <= 140degC) substances are not available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
12	Substances and mixtures which, in contact with water, emit flammable gases	Not classified (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).	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
13	Oxidizing liquids	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
14	Oxidizing solids	Not classified (Not applicable)	- -	-	-	The substance contains oxygen (but not fluorine or chlorine) which is chemically bonded only to carbon or hydrogen.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
15	Organic peroxides	Not classified (Not applicable)	- -	-	-	Organic compounds containing no bivalent -O-O- structure	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
16	Corrosive to metals	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
17	Desensitized explosives	-	- -	-	-	-	-	-

HEALTH HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
1	Acute toxicity (Oral)	Category 4	Warning	H302	P301+P312 P264 P270 P330 P501	Since its rat LD50 = 980 mg/kg (IUCLID (2000)) and it is rated Xn; R22 in the EU classification, the substance was classified into Category 4.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
1	Acute toxicity (Dermal)	Not classified	- -	-	-	Based on its mortality of 0/10 in rats at the dose of 2000 mg/kg (IUCLID (2000)), the substance was classified into "Not classified".	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
1	Acute toxicity (Inhalation: Gases)	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
1	Acute toxicity (Inhalation: Vapours)	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
1	Acute toxicity (Inhalation: Dusts and mists)	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
2	Skin corrosion/irritation	Category 1	Danger	H314	P301+P330+P331 P303+P361+P353 P305+P351+P338 P304+P340 P260 P264 P280 P310 P321 P363 P405 P501	Since it is documented that in a rabbit test (OECD TG 404), the substance was corrosive (IUCLID (2000)), and it is rated C; R34 in the EU classification, the substance was classified into Category 1.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
3	Serious eye damage/eye irritation	Category 1	Danger	H318	P305+P351+P338 P280 P310	Since in a rabbit test (OECD TG 405), the substance showed to be highly irritating (IUCLID (2000)), and its preexisting classification for skin corrosion is Category 1, the substance was classified into Category 1.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
4	Respiratory sensitization	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
4	Skin sensitization	Classification not possible	- -	-	-	It is reported that in human patch tests, the substance showed 1/4 individual positive and 1/18 dental nurse positive, respectively (IUCLID (2000)). However, since there is no other information available, classification is not possible.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
5	Germ cell mutagenicity	Not classified	- -	-	-	Since in a micronucleus test using mouse bone marrow cells (OECD TG 474) (in vivo mutagenicity test using somatic cells), the substance was negative (Toxicity Testing Reports of Environmental Chemicals (Chemicals Investigation Promoting Council) (accessed in November 2008)), it was classified into "Not classified". As relevant information, as for in vitro in vitro mutagenicity tests, in an Ames test, it was negative, and in a chromasomal aberration test using CHL cells, it indicated positive results (Toxicity Testing Reports of Environmental Chemicals (Chemicals Investigation Promoting Council) (accessed in September 2008)).	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
6	Carcinogenicity	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
7	Reproductive toxicity	Classification not possible	- -	-	-	In an oral administration test using rats (OECD TG 422), no significant difference in parental estrous cycle, copulation rate, conception rate, gestation period, number of corpcera lutea, number of implantation, or birth rate was noted relative to those in the control group. Regarding fetuses, decreased body weight gain was seen at high concentrations, but no significant difference was seen in number of births, sex ratio, live birth index, and neonate survival rate. No changes related to teratogenicity were also noted (Toxicity Testing Reports of Environmental Chemicals (Chemicals Investigation Promoting Council) (accessed in September 2008)). However, since the test did not provide sufficient information on fetal developmental toxicity, and due to the lack of data, the substance was classified into "Classification not possible".	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
8	Specific target organ toxicity - Single exposure	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	In an oral administration test by gavage using rats (OECD TG 422) (doses, 8, 40, 200 mg/kg/day: males, for 43 days; females, from 14 days before mating to 3 days after nursing), at doses of 40 mg/kg/day or more, in both males and females, mucosal hyperplasia, inflammatory cell infiltration, and edema were seen in the forestomach (Toxicity Testing Reports of Environmental Chemicals (Chemicals Investigation Promoting Council) (accessed in September 2008)). However, these findings were considered to be caused by irritation of the substance, and at the dose of 200 mg/kg/day, which is above the guidance value of Category 2, body weight suppression and a case of death were found in males, and decreased spontaneous movement and ataxia of gait were confirmed in females, but no other effects were not observed. Also, in an oral administration test via food for 19 weeks using rats (doses, 1000, 10000 ppm/kg (ca. 75, 750 mg/kg/day)), at doses up to 750 mg/kg, which are equivalent to the guidance value of Category 2, no effects were observed (IUCLID (2000)). Therefore, the substance should be classified into "Not classified" (oral). However, since there is no information on other routes, it was classified into "Classification not possible".	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
10	Aspiration hazard	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）

ENVIRONMENTAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
11	Hazardous to the aquatic environment Short term (Acute)	Category 2	- -	H401	P273 P501	It was classified in Category 2 from 48-hour EC50 = 4.5 mg/L for crustacea (Daphnia magna) (Results of Aquatic Toxicity Tests of Chemicals conducted by Ministry of the Environment in Japan (Ministry of the Environment, 2002), REACH registration dossier, 2021).	FY2021	GHS Classification Guidance for the Japanese Government (FY2019 revised edition (Ver. 2.0))
11	Hazardous to the aquatic environment Long term (Chronic)	Category 2	-	H411	P273 P391 P501	If chronic toxicity data are used, then it is classified as "Not classified" due to being not rapidly degradable (BIOWIN) and 21-day NOEC = 2.0 mg/L for crustacea (Daphnia magna) (Results of Aquatic Toxicity Tests of Chemicals conducted by Ministry of the Environment in Japan (Ministry of the Environment, 2002)). If acute toxicity data are used for a trophic level for which chronic toxicity data are not obtained (algae, fish), then it is classified in Category 2 due to being not rapidly degradable and 96-hour LC50 = 4.7 mg/L for fish (Oryzias latipes) (Results of Aquatic Toxicity Tests of Chemicals conducted by Ministry of the Environment in Japan (Ministry of the Environment, 2002), REACH registration dossier, 2021). By drawing a comparison between the above results, it was classified in Category 2. The classification result was revised from the previous classification by changing how to classify it in chronic toxicity and using new information.	FY2021	GHS Classification Guidance for the Japanese Government (FY2019 revised edition (Ver. 2.0))
12	Hazardous to the ozone layer	Classification not possible	- -	-	-	This substance is not listed in the Annexes to the Montreal Protocol.	FY2021	GHS Classification Guidance for the Japanese Government (FY2019 revised edition (Ver. 2.0))

NOTE:

GHS Classification Result by the Japanese Government is intended to provide a reference for preparing a GHS label or SDS for users. To include the same classification result in a label or SDS for Japan is NOT mandatory.
Users can cite or copy this classification result when preparing a GHS label or SDS. Please be aware, however, that the responsibility for a label or SDS prepared by citing or copying this classification result lies with users.
This GHS classification was conducted based on the information sources and the guidance for classification and judgement which are described in the GHS Classification Guidance for the Japanese Government etc. Using other literature, test results etc. as evidence and including different content from this classification result in a label or SDS are allowed.
Hazard statement and precautionary statement will show by hovering the mouse cursor over a code in the column of "Hazard statement" and "Precautionary statement," respectively. In the excel file, both the codes and statements are provided.
A blank or "-" in the column of "Classification" denotes that a classification for the hazard class was not conducted in the year.
An asterisk “*” in the column of “Classification” denotes that “Not classified (or No applicable)” and/or “Classification not possible” is applicable. Details are described in the column of “Rationale for the classification”. If no English translation is available for “Rationale for the classification,” please refer to the Japanese version of the results.

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