Item | Information |
---|---|
CAS RN | 110-12-3 |
Chemical Name | 5-Methyl-2-hexanone |
Substance ID | m-nite-110-12-3_v1 |
Download of Excel format | Excel file |
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) |
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. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
2 | Flammable gases | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
3 | Aerosols | Not classified (Not applicable) |
- |
- | - | Not aerosol products. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
4 | Oxidizing gases | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
5 | Gases under pressure | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
6 | Flammable liquids | Category 3 |
Warning |
H226 | P303+P361+P353 P370+P378 P403+P235 P210 P233 P240 P241 P242 P243 P280 P501 |
It was classified in Category 3 based on a flash point of 36 deg C (closed cup) (ICSC (1998)). Besides, it is classified in Class 3, PG III (UN2302) in UNRTDG. |
FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
7 | Flammable solids | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
8 | Self-reactive substances and mixtures | Not classified (Not applicable) |
- |
- | - | There are no chemical groups present in the molecule associated with explosive or self-reactive properties. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
9 | Pyrophoric liquids | Not classified |
- |
- | - | It is estimated that it does not ignite at normal temperatures from an autoignition temperature of 191 deg C (ICSC (1998)). | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
10 | Pyrophoric solids | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
11 | Self-heating substances and mixtures | Classification not possible |
- |
- | - | Test methods applicable to liquid substances are not available. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
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). | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
13 | Oxidizing liquids | Not classified (Not applicable) |
- |
- | - | The substance is an organic compound containing oxygen (but not fluorine or chlorine) which is chemically bonded only to carbon or hydrogen. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
14 | Oxidizing solids | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
15 | Organic peroxides | Not classified (Not applicable) |
- |
- | - | Organic compounds containing no bivalent -O-O- structure in the molecule | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
16 | Corrosive to metals | Classification not possible |
- |
- | - | No data available. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
17 | Desensitized explosives | - |
- |
- | - | - | - | - |
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 reports of LD50 values of 2,542 mg/kg, 3,200 mg/kg (PATTY (6th, 2012)) and 4,190 mg/kg (ACGIH (7th, 2013)) for rats, it was classified as "Not classified" (Category 5 in UN GHS classification). | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
1 | Acute toxicity (Dermal) | Not classified |
- |
- | - | Based on reports of an LD50 value of 8,880 mg/kg for rabbits (ACGIH (7th, 2013), PATTY (6th, 2012)), it was classified as "Not classified." | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
1 | Acute toxicity (Inhalation: Gases) | Not classified (Not applicable) |
- |
- | - | Liquid (GHS definition) | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
1 | Acute toxicity (Inhalation: Vapours) | Category 4 |
Warning |
H332 | P304+P340 P261 P271 P312 |
Based on a report of an LC50 value (6 hours) of 3,813 ppm (converted 4-hour equivalent value: 4,670 ppm) for rats (PATTY (6th, 2012)), it was classified in Category 4. Besides, since the LC50 value was lower than 90% of the saturated vapor concentration (5,923 ppm), the reference value in units of ppm was applied as a vapour without a mist. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
1 | Acute toxicity (Inhalation: Dusts and mists) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
2 | Skin corrosion/irritation | Classification not possible |
- |
- | - | There are descriptions that slight irritation was observed after application of this substance (undiluted) to guinea pigs for 24 hours (PATTY (6th, 2012)), and that erythema and necrosis were observed after application of this substance (20 mL/kg) to rabbits for 24 hours (ACGIH (7th, 2014)). Since the above results were data of the 24-hour application, they were judged to be insufficient data to determine the category, and it was classified as "Classification not possible." | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
3 | Serious eye damage/eye irritation | Category 2B |
Warning |
H320 | P305+P351+P338 P337+P313 P264 |
Based on a description that slight irritation was observed in an eye irritation test with rabbits (ACGIH (7th, 2001)), it was classified in Category 2B. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
4 | Respiratory sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
4 | Skin sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. Although there is a description that slight skin sensitization was observed in 1 of 5 animals (20%) in a skin sensitization test with guinea pigs (complete Freund's adjuvant test) (PATTY (6th, 2012)), the number of animals was small, and details of the result, etc. were unknown, therefore, they were judged to be insufficient data for classification. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
5 | Germ cell mutagenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. There are no in vivo data. As for in vitro, it was negative in a bacterial reverse mutation test (ACGIH (7th, 2013)). | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
6 | Carcinogenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
7 | Reproductive toxicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
8 | Specific target organ toxicity - Single exposure | Category 3 (respiratory tract irritation, narcotic effects) |
Warning |
H335 H336 |
P304+P340 P403+P233 P261 P271 P312 P405 P501 |
This substance is irritating to the respiratory tract (ACGIH (7th, 2001), PATTY (6th, 2012), HSDB (Access on September 2014)). There are no human data, however, as for experimental animals, a decreased response to noise at 1,603 ppm (7.49 mg/L), and a decreased respiratory rate and narcosis at 3,207 ppm (14.98 mg/L) by an inhalation exposure with rats (ACGIH (2013), HSDB (Access on September 2014)) were reported. From the above, it was classified in Category 3 (respiratory tract irritation, narcotic effects). | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
9 | Specific target organ toxicity - Repeated exposure | Category 2 (central nervous system, respiratory organs, kidney) |
Warning |
H373 | P260 P314 P501 |
There are no adverse findings by exposure to this substance in humans. However, it is reported that irritation of the mucous membranes, and symptoms in the central nervous system and gastrointestine were observed in occupational exposure to methyl isobutyl ketone (CAS RN: 108-10-1), a substance with a related chemical structure (ACGIH (7th, 2013)). On the other hand, as for experimental animals, there is a description that in a study in which rats were exposed by inhalation to the vapour of this substance for 2 or 13 weeks, at a concentration of 1,000 ppm (4.66 mg/L: 1 ppm=4.66 mg/m3 (ACGIH (7th, 2013))), nasal and eye irritation, lethargy, decreased aural response, and effects on the kidney (increased weight, regeneration of the tubular epithelium, hyaline droplet formation) were observed (PATTY (6th, 2012), ACGIH (7th, 2013)), and in the 2-week inhalation test, effects on the nasal mucosa, central nervous system and kidney were observed within the range for Category 2 (converted guidance value: 0.62 mg/L/6 hours). From the above, based on the findings in experimental animals, it was classified in Category 2 (central nervous system, respiratory organs, kidney). Besides, this time, based on the results of the above inhalation exposure tests with rats, which were evidence data for reviewing the TLV value in ACGIH (7th, 2013) after the previous classification, target organs were added. Therefore, the classification result was different from the previous one. |
FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
10 | Aspiration hazard | Classification not possible |
- |
- | - | It is a ketone composed of less than 13 carbon atoms, and a kinematic viscosity of 0.867 (20 deg C, calculated value by CERI). Since it corresponded to Category 2 in UN GHS classification, it was classified as "Classification not possible" according to the current GHS Classification Guidance for the Japanese Government. | FY2014 | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0)) |
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) | Not classified |
- |
- | - | It carried out the outside of Category from 96-hour LC50=159mg/L of fishes (Fathead minnows) (ECETOC TR91, 2003). | FY2006 | GHS Classification Manual (10 Feb, 2006) |
11 | Hazardous to the aquatic environment Long term (Chronic) | Not classified |
- |
- | - | Since not water-insoluble (aqueous solubility =5400mg/L(PHYSPROP Database, 2005)) and acute toxicity is low. | FY2006 | GHS Classification Manual (10 Feb, 2006) |
12 | Hazardous to the ozone layer | - |
- |
- | - | - | - | - |
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