NITE - Chemical Management Field

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

GENERAL INFORMATION

Item	Information
CAS RN	79-74-3
Chemical Name	2,5-Di-tert-amylhydroquinone
Substance ID	m-nite-79-74-3_v1
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)	To Workplace Safety Site (MHLW)
Sample SDS by MHLW (External link)	To Workplace Safety Site (MHLW)
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 molecule.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
2	Flammable gases	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
3	Aerosols	Not classified (Not applicable)	- -	-	-	Not an aerosol product.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
4	Oxidizing gases	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
5	Gases under pressure	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
6	Flammable liquids	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
7	Flammable solids	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
8	Self-reactive substances and mixtures	Not classified (Not applicable)	- -	-	-	Containing neither chemical groups related to explosibility nor those related to self-reactivity.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
9	Pyrophoric liquids	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
10	Pyrophoric solids	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
11	Self-heating substances and mixtures	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
12	Substances and mixtures which, in contact with water, emit flammable gases	Not classified (Not applicable)	- -	-	-	Not containing metals or semimetals (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At).	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
13	Oxidizing liquids	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
14	Oxidizing solids	Not classified (Not applicable)	- -	-	-	An organic compound that contains oxygen which is not chemically bonded to elements other than carbon or hydrogen.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
15	Organic peroxides	Not classified (Not applicable)	- -	-	-	An organic compound that does not contain -O-O- structure.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
16	Corrosive to metals	Classification not possible	- -	-	-	No established test method suitable for solid substances.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
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)	Classification not possible	- -	-	-	The classification is not possible due to lack of data. Besides, an LD50 value of 2000 mg/kg bw for rats (RTECS (2004)) is reported in list 3 data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
1	Acute toxicity (Dermal)	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
1	Acute toxicity (Inhalation: Gases)	Not classified (Not applicable)	- -	-	-	"Solids" according to GHS definition.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
1	Acute toxicity (Inhalation: Vapours)	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
1	Acute toxicity (Inhalation: Dusts and mists)	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
2	Skin corrosion/irritation	Classification not possible	- -	-	-	The classification is not possible due to lack of data. Besides, a dermal sensitization test by a repeated patch test in more than 50 adults reported that this substance showed a weak to moderate skin irritation tendency (HSDB (2003)).	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
3	Serious eye damage/eye irritation	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
4	Respiratory sensitization	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
4	Skin sensitization	Classification not possible	- -	-	-	A dermal sensitization test by a repeated patch test applied to a dorsal skin in 50 adults reported that skin reaction in challenge phase was comparable to that in the induction phase, and no dermal sensitization was found (HSDB (2003)). It was classified as "Classification not possible" because the test results were not clearly described and the information was from List 2.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
5	Germ cell mutagenicity	Not classified	- -	-	-	On the basis of a negative result in a chromosomal aberration test using bone marrow cells by oral administration to rats (in vivo somatic cell mutagenicity test), it was classified as "Not classified." Besides, a positive in a chromosome aberration test in the absence of metabolic activation using Chinese hamster ovarian (CHO) cells was reported as an in vitro test (HSDB (2003)).	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
6	Carcinogenicity	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
7	Reproductive toxicity	Classification not possible	- -	-	-	A development toxicity test was conducted by administering this substance orally to pregnant rats in an organogenesis period. Observed maternal toxicities were weight loss and reduced food consumption, and observed fetal toxicities were significant weight loss and increased ossification variations such as skull anomalies, unossification of cervical ribs and sternebrae (HSDB (2003)), but teratogenicity was not reported. But the classification is not possible because there are no data on effects on sexual function and fertility.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
8	Specific target organ toxicity - Single exposure	Category 2 (systemic)	Warning	H371	P308+P311 P260 P264 P270 P405 P501	A single dose oral administration test of 1000 mg/kg bw to rats (chromosomal aberration test) reported that all rats showed diarrhea, abnormal gait, and stance, and in an 18-hour group, the rats showed decreased body tone and inactivity, and 2 females of them died (HSDB (2003)). It was classified in Category 2 (systemic toxicity) because the dose corresponds to values of category 2 in Guidance, and specifying target organs from the toxic symptoms is difficult.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
10	Aspiration hazard	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）

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)	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
11	Hazardous to the aquatic environment Long term (Chronic)	Classification not possible	- -	-	-	No data.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）
12	Hazardous to the ozone layer	Classification not possible	- -	-	-	This substance is not listed in Annexes to the Montreal Protocol.	FY2011	GHS Classification Guidance by the Japanese Government （July, 2010）

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.

To GHS Information