NITE - Chemical Management Field

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

GENERAL INFORMATION

Item	Information
CAS RN	3173-72-6
Chemical Name	1,5-naphthylene diisocyanate
Substance ID	m-nite-3173-72-6_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)	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	Classification not possible	- -	-	-	The substance contains unsaturated bonds. Classification is not possible due to lack of data.	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	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
11	Self-heating substances and mixtures	Classification not possible	- -	-	-	Its melting point is 127degC (Ullmanns 6th (2003)). 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 in the molecule	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
16	Corrosive to metals	Classification not possible	- -	-	-	Its melting point is 127degC (Ullmanns 6th (2003)). Test methods applicable to solid substances with a melting point > 55degC are not 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)	Not classified	- -	-	-	Based on the rat LD50 > 10000mg/kg (IUCLID, 2000), the substance was classified into "Not classified".	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
1	Acute toxicity (Dermal)	Classification not possible	- -	-	-	No data available.	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)	Category 2	Danger	H330	P304+P340 P403+P233 P260 P271 P284 P310 P320 P405 P501	In 4-hour exposure tests, the rat LC50 values were 0.27mg/L (OECD TG 403) and > 0.52mg/L (OECD TG 403) (IUCLID, 2000). Of two LC50 values, 0.27mg/L, indicating higher toxicity, was used as a basis by which the substance was classified into Category 2. The EU has classified the substance into R23.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
2	Skin corrosion/irritation	Category 2	Warning	H315	P302+P352 P332+P313 P362+P364 P264 P280 P321	The substance was found not to be irritating in human tests (IUCLID, 2000). On the other hand, rabbit tests yielded contradictory results: the substance caused severe irritation in one test and was not irritating in another (IUCLID, 2000). Based on the EU's classification of the substance into R36, 37, and 38 (EU-Annex 1, accessed in July 2008), it was classified into Category 2 taking the higher risk rating by the EU into account.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
3	Serious eye damage/eye irritation	Category 2A	Warning	H319	P305+P351+P338 P337+P313 P264 P280	Rabbit tests yielded contradictory results: the substance was found to cause severe irritation in one test and was not irritating in another (IUCLID, 2000). Based on the EU's classification of the substance into R36, 37, and 38 (EU-Annex 1, accessed in July 2008), it was classified into Category 2A taking the higher risk rating by the EU into account.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
4	Respiratory sensitization	Category 1	Danger	H334	P304+P340 P342+P311 P261 P284 P501	Occupational asthmatic patients showed positive reactions in bronchus provocation tests (IUCLID, 2000), and the substance has been classified into R42 in EU classification (EU-Annex 1 (accessed in July 2008)). Thus, the substance was classified into Category 1.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
4	Skin sensitization	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
5	Germ cell mutagenicity	Classification not possible	- -	-	-	In vitro mutagenicity tests (Ames tests) yielded negative results (IUCLID, 2000). However, since there was no in vivo data available, classification is not possible.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
6	Carcinogenicity	Not classified	- -	-	-	Since IARC classified the substance into Group 3 in carcinogenicity assessment (IARC 71 (1999)), it was classified into "Not classified".	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
7	Reproductive toxicity	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
8	Specific target organ toxicity - Single exposure	Category 3 (Respiratory tract irritation)	Warning	H335	P304+P340 P403+P233 P261 P271 P312 P405 P501	The link between exposure to this substance and bronchitis has been documented based on observations that workers who handled this substance at the polyurethane rubber producing plants suffered from conjunctival irritation in addition to acute disorder in the respiratory tracts. In addition, as a result of epidemiological studies on rubber production workers, the substance has been confirmed to be an irritant since exposure to it was associated with increased frequencies of eye irritation, coughing, and exertional dyspnea. Moreover, increased closing volume seen particularly in elderly workers in respiratory function tests is considered to be an indicator of respiratory tract irritation. Based on these human cases, the substance was classified into Category 3 (respiratory tract irritation). By the EU, the substance has been classified into R36, 37, and 38 (EU-Annexl (accessed July 2008)).	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
9	Specific target organ toxicity - Repeated exposure	Category 2 (respiratory organs)	Warning	H373	P260 P314 P501	There is a case report in which a worker who handled polyurethane containing this substance repeatedly suffered from high fever and seizures accompanied with severe respiratory symptoms three times within a month, and died during seizures (IUCLID (2000)). However, this worker did not show any symptoms while handling the same material prior to the incident (IUCLID (2000)). In addition, because some workers (unidentified number) who handled materials containing this substance complained of bronchitis, an observational study was conducted for 1 year. This study indicated that there may be a positive relationship between isocyanate and thoracic disorder (IUCLID (2000)). Based on these List 2 assessment documents on human cases, the substance was classified into Category 2 (respiratory system).	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)	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
11	Hazardous to the aquatic environment Long term (Chronic)	Classification not possible	- -	-	-	No data available.	FY2008	GHS Classification Guidance by the Japanese Government （Sep, 2008）
12	Hazardous to the ozone layer	-	- -	-	-	-	-	-

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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