NITE - Chemical Management Field

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

GENERAL INFORMATION

Item	Information
CAS RN	590-18-1
Chemical Name	cis-2-Butene
Substance ID	m-nite-590-18-1_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)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
2	Flammable gases	Category 1	Danger	H220	P210 P377 P381 P403	It is classified in class 2.1 in UNRTDG (UN1012) (1.7 to 9.0％(ICSC (1996))).	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
3	Aerosols	Not classified (Not applicable)	- -	-	-	Not an aerosol product.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
4	Oxidizing gases	Not classified	- -	-	-	It is classified in class 2.1 in UNRTDG (UN1012) and flammable gases.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
5	Gases under pressure	Liquefied gas	Warning	H280	P410+P403	From a critical temperature (162.4 degrees C) (GESTIS (Access on June 2015)) above 65 degrees C, it was classified in liquefied gas (low pressure liquefied gas).	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
6	Flammable liquids	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
7	Flammable solids	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
8	Self-reactive substances and mixtures	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
9	Pyrophoric liquids	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
10	Pyrophoric solids	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
11	Self-heating substances and mixtures	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
12	Substances and mixtures which, in contact with water, emit flammable gases	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
13	Oxidizing liquids	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
14	Oxidizing solids	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
15	Organic peroxides	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
16	Corrosive to metals	Classification not possible	- -	-	-	No established test method suitable for gaseous substances.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
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)	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
1	Acute toxicity (Dermal)	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
1	Acute toxicity (Inhalation: Gases)	Classification not possible	- -	-	-	The classification is not possible due to lack of data. 　An LC50 value (4 hours) of > 10,000 ppm for rats was reported for a mixture consisting of trans-2-butene (55.3 vol%), cis-2-butene (42.4 vol%) and others (n-butane, 1-butene, and so on) (2.3 vol%) (SIDS (2012)).	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
1	Acute toxicity (Inhalation: Vapours)	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
1	Acute toxicity (Inhalation: Dusts and mists)	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
2	Skin corrosion/irritation	Classification not possible	- -	-	-	The classification is not possible due to lack of data. 　Besides, there is the information that a liquefied product of 2-butene could cause frostbite in direct contact with skin (SIDS (2012)).	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
3	Serious eye damage/eye irritation	Classification not possible	- -	-	-	The classification is not possible due to lack of data. 　Besides, there is the information that 1-butene is mildly irritating to eyes (HSDB (Access on June 2015)).	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
4	Respiratory sensitization	Classification not possible	- -	-	-	Due to lack of data, the classification is not possible.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
4	Skin sensitization	Classification not possible	- -	-	-	Due to lack of data, the classification is not possible.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
5	Germ cell mutagenicity	Classification not possible	- -	-	-	The classification is not possible due to lack of data. 　Besides, as in vitro data on an isomer mixture, 2-butene was reported to be negative in a bacterial reverse mutation test and a chromosomal aberration test using rat peripheral blood lymphocytes (SIDS (2012), ACGIH (7th, 2001)).	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
6	Carcinogenicity	Classification not possible	- -	-	-	For this substance, no carcinogenicity test was reported and no classification was internationally conducted. 　Therefore, the classification is not possible due to lack of data.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
7	Reproductive toxicity	Classification not possible	- -	-	-	There is no report on reproductive/developmental effects by exposure to this substance only. 　Besides, in a combined repeated dose toxicity study with reproduction/developmental toxicity screening test (OECD TG 422) using rats with an inhalation route on 2-butene (a mixture of cis- and trans-isomers), no effect on fertility of parent animals and growth of the offspring until four days after birth were observed (SIDS (2012), ACGIH (7th, 2008)). However, because it is a screening test, the classification is not possible due to lack of the information with only this result.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
8	Specific target organ toxicity - Single exposure	Classification not possible	- -	-	-	As for experimental animals (mice), there is the information that inhalation exposure to this substance (17.2 vol%) caused narcotic effects within 10 minutes and it was reported that an inhalation exposure to this substance of 25.5 vol% (255,000 ppm) caused asphyxia (ACGIH (7th, 2008), SIDS (2012), PATTY (6th, 2012)). 　Because asphyxia and narcotic effects mentioned above were due to lack of oxygen in a limited space, it was classified as "Classification not possible."	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	No repeated dose toxicity data on this substance. 　Toxicity information by an inhalation route of experimental animals was obtained on 2-butene (a mixture of cis- and trans-isomers). In a combined repeated dose toxicity study with reproduction/developmental toxicity screening test using rats (OECD TG 422), no effect was observed up to the highest dose of 5,000 ppm (SIDS (2012)). This dose is above a guidance value range of Category 2 and corresponds to "Not classified," however, the classification is not possible because the test is a screening test. 　Therefore, it was classified as "Classification not possible" due to lack of data.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
10	Aspiration hazard	Not classified (Not applicable)	- -	-	-	"Gases" according to GHS definition.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))

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	- -	-	-	The classification is not possible because appropriate data are not obtained. 　Besides, in SIDS, 96-hour EC50 = 14 mg/L for algae, 48-hour EC50 = 22 mg/L for crustacea and 96-hour LC50 = 20 mg/L for fish as QSAR estimation are reported (all SIDS, 2012), however, they were not used for the classification.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
11	Hazardous to the aquatic environment Long term (Chronic)	Classification not possible	- -	-	-	The classification is not possible because appropriate data are not obtained. 　Besides, in SIDS, a 96-hour chronic value = 1.7 mg/L for algae, a 16-day chronic value = 1.3 mg/L for crustacea and a 30-day chronic value = 2.8 mg/L for fish as QSAR estimation are reported (all SIDS, 2012), however, they were not used for the classification.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))
12	Hazardous to the ozone layer	Classification not possible	- -	-	-	No data.	FY2015	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1))

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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