NITE - Chemical Management Field

GHS Classification Result

GENERAL INFORMATION

Item	Information
CAS RN	90-30-2
Chemical Name	1-(N-Phenylamino)naphthalene
Substance ID	24A6067
Classification year (FY)	FY2012
Ministry who conducted the classification	Ministry of Health, Labour and Welfare (MHLW)/Ministry of the Environment (MOE)
New/Revised	New
Classification result in other fiscal year
Download of Excel format	Excel file

REFERENCE INFORMATION

Item	Information
Guidance used for the classification (External link)	Physical Hazards and Health Hazards: GHS Classification Guidance by the Japanese Government (July, 2010) Environmental Hazards: UN GHS Document (4th revised edition)
UN GHS document (External link)	UN GHS document
Definitions/Abbreviations (Excel file)	Definitions/Abbreviations
Model Label by MHLW (External link)	MHLW Website (in Japanese Only)
Model SDS by MHLW (External link)	MHLW Website (in Japanese Only)
OECD/eChemPortal (External link)	eChemPortal

PHYSICAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	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	- -	-	-	There is information that it is combustible (ICSC (J) (Access on July 2012)), but the classification is not possible due to no data.
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	- -	-	-	It is estimated that it does not ignite at normal temperatures from an autoignition temperature of > 500 deg C (MSDS (Merck) (2010)).
11	Self-heating substances and mixtures	Classification not possible	- -	-	-	Test methods applicable to solid (melting point <= 140 deg C) 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	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification
1	Acute toxicity (Oral)	Category 4	Warning	H302	P301+P312 P264 P270 P330 P501	There is a report on five LD50 values for rats (> 5,000 mg/kg, 200-2,000 mg/kg, 2,380 mg/kg, 1,630 mg/kg, 1,625 mg/kg) (all USEPA/HPV (2003), corresponding to List 1), two of them correspond to "Not classified" (in the Classification JIS), two to Category 4, and one corresponds to Category 3-4. It was classified in Category 4 to which most corresponded.
1	Acute toxicity (Dermal)	Not classified	- -	-	-	It was classified as "Not classified" based on an LD50 value of > 5,000 mg/kg for rabbits (USEPA/HPV (2003)).
1	Acute toxicity (Inhalation: Gases)	Not applicable	- -	-	-	Solid (GHS definition)
1	Acute toxicity (Inhalation: Vapours)	Classification not possible	- -	-	-	It is reported that there were no deaths (0/6) after 8-hour exposure to the saturated vapour in rats (USEPA/HPV (2003)), but the category cannot be determined with this result alone. Therefore, the classification is not possible. Besides, the saturated vapour pressure concentration is 9.78E-05 mg/L.
1	Acute toxicity (Inhalation: Dusts and mists)	Classification not possible	- -	-	-	No data available.
2	Skin corrosion/irritation	Not classified	- -	-	-	In a test with rabbits (US FDA standard), a slight positive reaction was observed in three out of six animals, and it was judged as a very slight irritant (CICAD 9 (1998)), and in another test with rabbits (OECD TG 404), slight erythema and edema were found in one out of three animals 1 hour after removal of the patch, but these disappeared after 24 or 72 hours, and it was judged to be not a skin irritant (CICAD 9 (1998)). Therefore, it was classified as "Not classified."
3	Serious eye damage/eye irritation	Not classified	- -	-	-	It was classified as "Not classified" because it is reported that it was not irritating in a test with rabbits (OECD TG 405) (USEPA/HPV (2003)), and in another test with rabbits (FDA Guidelines), slight conjunctivitis was observed in four out of six animals, but this disappeared after seven days (BUA Report 113 (1994)). Besides, an irritation score for the conjunctiva is less than 2 for slight conjunctivitis, and it is not regarded as a positive reaction in classification.
4	Respiratory sensitization	Classification not possible	- -	-	-	No data available.
4	Skin sensitization	Category 1	Warning	H317	P302+P352 P333+P313 P362+P364 P261 P272 P280 P321 P501	In a maximization test with guinea pigs (OECD TG 406), a positive rate increased from 75% (15/20) to 90% (18/20) with increasing concentration for the challenge, and it was shown to be a strong sensitizer (CICAD 9 (1998)), and it was listed as a contact allergen in Contact Dermatitis (Frosch) (5th, 2011) (corresponding to List 1). Therefore, it was classified in Category 1. Besides, in humans, three are many case reports in which patients with contact dermatitis showed positive reactions in patch tests on the substance (USEPA/HPV (2003)).
5	Germ cell mutagenicity	Not classified	- -	-	-	It was classified as "Not classified" based on a negative result in a dominant lethal test in which male mice were intraperitoneally administered and mated with untreated females (in vivo heritable germ cell mutagenicity test) (CICAD (J) 9 (1998)). Besides, as for in vitro tests, it is reported that it was negative in all of an Ames test (CICAD (J) 9 (1998)), a gene mutation test with L5178Y mouse lymphoma cells (CICAD (J) 9 (1998)), and chromosomal aberration tests with CHO cells (CICAD (J) 9 (1998)) or CHL cells (USEPA/HPV (2003)) of Chinese hamsters.
6	Carcinogenicity	Classification not possible	- -	-	-	As for carcinogenicity test results available for the substance, they were inadequate for the evaluation of carcinogenicity because tests were not according to the current standard procedures (CICAD (J) 9 (1998)). And it is reported that an increased occurrence of cancers was observed in an epidemiological study of occupationally exposed workers, but it is described that it is not possible to attribute this finding solely to 1-(N-phenylamino)naphthalene because of the small number of deaths from cancers and concomitant exposure to other chemicals (CICAD (J) 9 (1998)). From the above, it was classified as "Classification not possible" due to lack of data. Besides, as for animal tests, it is reported that the incidence of lung carcinoma and the combined incidence of hemangiosarcoma in the kidney and the other organs significantly increased after 27-time subcutaneous administration to mice over nine weeks (CICAD (J) 9 (1998)).
7	Reproductive toxicity	Classification not possible	- -	-	-	No data available.
8	Specific target organ toxicity - Single exposure	Classification not possible	- -	-	-	Data are lacking. Besides, as the information in the administration routes that could not be used for classification, it is reported that slight fatty degeneration in the liver was observed three months after subcutaneous administration of 200 mg/kg to rabbits (HSDB (2005)), and a slightly increased methemoglobin level was found within 10 minutes after intraperitoneal administration to mice (HSDB (2005)).
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	Data are lacking. Besides, no exposure-related adverse effects were observed in a test by 2-week oral administration of 2,000 mg/kg/day to female rats (CICAD (J) 9 (1998)), and there is a report on fatty degeneration in the liver after 6-week oral administration of 200 mg/kg/day or 5-week dermal administration of a 5% solution to rabbits (CICAD (J) 9 (1998)). However, because the tests had one dose only and the small number of animals (1-3 animals/group) and were not conducted according to the current standard procedures, they are inadequate to use for rationale.
10	Aspiration hazard	Classification not possible	- -	-	-	No data available.

ENVIRONMENTAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification
11	Hazardous to the aquatic environment (Acute)	Category 1	Warning	H400	P273 P391 P501	It was classified in Category 1 from 72-hour EC50 = 0.034 mg/L for algae (Pseudokirchneriella subcapitata) (Results of Aquatic Toxicity Tests of Chemicals conducted by Ministry of the Environment in Japan (Ministry of the Environment, 2005)).
11	Hazardous to the aquatic environment (Long-term)	Category 1	Warning	H410	P273 P391 P501	If chronic toxicity data are used, then it is classified in Category 1 due to being not rapidly degradable (not readily degradable, BOD 0% (Biodegradation and Bioconcentration Results of Existing Chemical Substances under the Chemical Substances Control Law, 1982)), and 72-hour NOEC = 0.0036 mg/L for algae (Pseudokirchneriella subcapitata) (Results of Aquatic Toxicity Tests of Chemicals conducted by Ministry of the Environment in Japan (Ministry of the Environment, 2005)). If acute toxicity data are used for a trophic level for which chronic toxicity data are not obtained, then it is classified in Category 1 due to being not rapidly degradable (not readily degradable, BOD 0% (Biodegradation and Bioconcentration Results of Existing Chemical Substances under the Chemical Substances Control Law, 1982)), and 96-hour LC50 = 0.7 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, 2005)). From the above results, it was classified in Category 1.
12	Hazardous to the ozone layer	Classification not possible	- -	-	-	This substance is not listed in the Annexes to the Montreal Protocol.

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.

To GHS Information