| Item | Information |
|---|---|
| CAS RN | 5460-09-3 |
| Chemical Name | Monosodium hydrogen 4-amino-5-hydroxy-2,7-naphthalenedisulfonate |
| Substance ID | H29-A-026 |
| Classification year (FY) | FY2017 |
| 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 |
| Item | Information |
|---|---|
| Guidance used for the classification (External link) | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1)) |
| UN GHS document (External link) | UN GHS document |
| Definitions/Abbreviations (Excel file) | Definitions/Abbreviations |
| Model Label by MHLW (External link) | |
| Model SDS by MHLW (External link) | |
| OECD/eChemPortal (External link) | eChemPortal |
| 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 the information that it is combustible (GESTIS (Access on September 2017)), 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 > 400 deg C (GESTIS (Access on September 2017)). |
| 11 | Self-heating substances and mixtures | Classification not possible |
- |
- | - | No data available. |
| 12 | Substances and mixtures which, in contact with water, emit flammable gases | Not classified |
- |
- | - | It contains metals (Na), but it is estimated that it does not react vigorously with water from the measurement data of water solubility of 11.4 g/L (20 deg C) (GESTIS (Access on September 2017)). |
| 13 | Oxidizing liquids | Not applicable |
- |
- | - | Solid (GHS definition). |
| 14 | Oxidizing solids | Classification not possible |
- |
- | - | It is an organic compound which does not contain fluorine or chlorine but contains oxygen, and the oxygen is chemically bonded to the element other than carbon or hydrogen (S). However, the classification is not possible due to no data. Besides, sodium is ionically bonded to oxygen and does not contribute to oxidation. |
| 15 | Organic peroxides | Not applicable |
- |
- | - | Organic compounds containing no bivalent -O-O- structure in the molecule |
| 16 | Corrosive to metals | Classification not possible |
- |
- | - | Test methods applicable to solid substances are not available. |
| Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
|---|---|---|---|---|---|---|
| 1 | Acute toxicity (Oral) | Not classified |
- |
- | - | Based on a report of an LD50 value of > 2,000 mg/kg (JECDB (Access on August 2017), SIDS (2011)) for rats, it was classified as "Not classified." |
| 1 | Acute toxicity (Dermal) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 1 | Acute toxicity (Inhalation: Gases) | Not applicable |
- |
- | - | Solid (GHS definition) |
| 1 | Acute toxicity (Inhalation: Vapours) | Not applicable |
- |
- | - | Solid (GHS definition) |
| 1 | Acute toxicity (Inhalation: Dusts and mists) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 2 | Skin corrosion/irritation | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 3 | Serious eye damage/eye irritation | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 4 | Respiratory sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 4 | Skin sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 5 | Germ cell mutagenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. There is no in vivo data. As for in vitro, a bacterial reverse mutation test and a chromosomal aberration test with mammalian cultured cells were negative (JECDB (Access on September 2017), SIDS (2011)). |
| 6 | Carcinogenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 7 | Reproductive toxicity | Classification not possible |
- |
- | - | In a reproduction/developmental toxicity screening test (OECD TG 421) with rats dosed by gavage, no reproductive and developmental effects were detected at up to 1,000 mg/kg/day which is the limit dose (JECDB (Access on August 2017)). However, it is impossible to classify it as "Not classified" with only this result since this test is a screening test. Therefore, it was classified as "Classification not possible." |
| 8 | Specific target organ toxicity - Single exposure | Classification not possible |
- |
- | - | Classification not possible due to lack of data. Besides, there is a report that in a single oral dose test with rats, there was no death at 2,000 mg/kg/day which is the upper limit of Category 2, and also changes in general condition, effects on body weight gain and macroscopic abnormal findings in the organs on necropsy were not observed (JECDB (Access on August 2017), SIDS (2011)). |
| 9 | Specific target organ toxicity - Repeated exposure | Classification not possible |
- |
- | - |
No information on humans is available. As for experimental animals, in a 28-day repeated oral dose toxicity test with rats, only a slight dilatation of the caecum, which is considered to be due to an increase in cecal contents, was observed at 1,000 mg/kg/day (converted guidance value: 311 mg/kg/day) exceeding the guidance value range for Category 2, and no toxic effect was observed (JECDB (Access on August 2017), SIDS (2011)). From the above, since it corresponds to "Not classified" in the oral route, but there is no information on the effects in other routes, it was classified as "Classification not possible" due to lack of data. |
| 10 | Aspiration hazard | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
|---|---|---|---|---|---|---|
| 11 | Hazardous to the aquatic environment (Acute) | Classification not possible |
- |
- | - | No data available. |
| 11 | Hazardous to the aquatic environment (Long-term) | Classification not possible |
- |
- | - | No data available. |
| 12 | Hazardous to the ozone layer | Classification not possible |
- |
- | - | No data available. |
|
* A blank or "-" in a cell of classification denotes that the classification of the hazard class was not conducted. * Hazard_statement_and/or_Precautionary_statement will show when hovering the mouse over a code of Hazard_statement_and/or_Precautionary_statement. Hazard_statement_and/or_Precautionary_statement are also provided in the Excel file. * Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users. * This is a provisional English translation of classification results and is subject to revision without notice. * The responsibility for any resulting GHS labelling and SDS referenced from this site is with users. * Codes assigned to each of the hazard statements and codes for each of the precautionary statement are based on the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) in United Nations. |