GHS Classification Result
GENERAL INFORMATION
REFERENCE INFORMATION
PHYSICAL HAZARDS
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS
NOTE:
GENERAL INFORMATION
| Item | Information |
|---|---|
| CAS RN | 26087-47-8 |
| Chemical Name | S-benzyl O,O-diisopropyl phosphorothioate [Iprobenfos] |
| Substance ID | H28-B-066, C-145B |
| Classification year (FY) | FY2016 |
| Ministry who conducted the classification | Ministry of Health, Labour and Welfare (MHLW)/Ministry of the Environment (MOE) |
| New/Revised | Revised |
| Classification result in other fiscal year | FY2006 |
| Download of Excel format | Excel file |
REFERENCE INFORMATION
| 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) | MHLW Website (in Japanese Only) |
| Model SDS by MHLW (External link) | MHLW Website (in Japanese Only) |
| 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 |
- |
- | - | Liquid (GHS definition) |
| 3 | Aerosols | Not applicable |
- |
- | - | Not aerosol products. |
| 4 | Oxidizing gases | Not applicable |
- |
- | - | Liquid (GHS definition) |
| 5 | Gases under pressure | Not applicable |
- |
- | - | Liquid (GHS definition) |
| 6 | Flammable liquids | Classification not possible |
- |
- | - | No data available. |
| 7 | Flammable solids | Not applicable |
- |
- | - | Liquid (GHS definition) |
| 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 classified |
- |
- | - | Because it is stable to heat up to 150 deg C (Risk Assessment Report (Pesticides) (Food Safety Commission of Japan, 2009)), it is estimated that it does not ignite in contact with air at normal temperatures. |
| 10 | Pyrophoric solids | Not applicable |
- |
- | - | Liquid (GHS definition) |
| 11 | Self-heating substances and mixtures | Classification not possible |
- |
- | - | Test methods applicable to liquid substances are not available. |
| 12 | Substances and mixtures which, in contact with water, emit flammable gases | Not classified |
- |
- | - | It contains a metalloid (P), but it is estimated that it does not react vigorously with water due to the water solubility result of 0.54 g/L measured (Risk Assessment Report (Pesticides) (Food Safety Commission of Japan, 2009)). |
| 13 | Oxidizing liquids | Classification not possible |
- |
- | - | The substance is an organic compound containing oxygen (but not fluorine or chlorine) which is chemically bonded to the element other than carbon or hydrogen (P), but the classification is not possible due to no data. |
| 14 | Oxidizing solids | Not applicable |
- |
- | - | Liquid (GHS definition) |
| 15 | Organic peroxides | Not applicable |
- |
- | - | Organic compounds containing no bivalent -O-O- structure in the molecule |
| 16 | Corrosive to metals | Classification not possible |
- |
- | - | No data available. |
| 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 |
On the basis of 4 reported LD50 values for rats of 640 mg/kg (male), 600 mg/kg (female), 790 mg/kg (male), 680 mg/kg (female) (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009), Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)), it was classified in Category 4. |
| 1 | Acute toxicity (Dermal) | Not classified |
- |
- | - | On the basis of a reported LD50 value for rats of > 4,000 mg/kg (male, female) (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009), Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)), it was classified as "Not classified." |
| 1 | Acute toxicity (Inhalation: Gases) | Not applicable |
- |
- | - | Liquid (GHS definition) |
| 1 | Acute toxicity (Inhalation: Vapours) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 1 | Acute toxicity (Inhalation: Dusts and mists) | Not classified |
- |
- | - |
There were 4 reported LC50 values (4 hours) for rats of > 5.15 mg/L (male), > 5.15 mg/L (female), 0.34 mg/L (female), 1.12 mg/L (male) (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009), Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). The former 2 data are from the test carried out in 2006, and the latter 2 data are from the one done in 1986. Each test was performed by GLP, the test in 2006 was done by nose-only exposure using animals 8 weeks of age, and the test in 1986 was done by whole body exposure using animals 6 -8 weeks of age. In OECD TG403, nose-only exposure is recommended, and animal age is specified as 8-12 weeks. Therefore, by adopting > 5.15 mg/L (male), > 5.15 mg/L (female) from the test which is a later one and which test methods were appropriate, the substance was classified as "Not classified." In addition, the reference value of mist was applied because LC50 values are higher than the saturated vapor pressure concentration (0.0014 mg/L). On the basis of newly obtained information, the category was revised. |
| 2 | Skin corrosion/irritation | Not classified |
- |
- | - | Because in a skin irritation test using rabbits, no irritation was observed, and this substance was evaluated as not a skin irritant (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)), it was classified as "Not classified." |
| 3 | Serious eye damage/eye irritation | Category 2B |
Warning |
H320 |
P305+P351+P338
P337+P313 P264 |
Because it is reported that in an eye irritation test using rabbits, slight irritation was observed (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)), it was classified in Category 2B. |
| 4 | Respiratory sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 4 | Skin sensitization | Category 1 |
Warning |
H317 |
P302+P352
P333+P313 P362+P364 P261 P272 P280 P321 P501 |
Because in a skin sensitization test using guinea pigs (maximization test), medium sensitization was observed (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)), it was classified in Category 1. |
| 5 | Germ cell mutagenicity | Classification not possible |
- |
- | - | Because it was not possible to classify a substance as "Not classified" according to the revised GHS classification guidance for the Japanese government, it was classified as "Classification not possible." As for in vivo, a micronucleus test using bone marrow cells of mice was negative, and as for in vitro, bacterial reverse mutation tests were negative, and mammalian cell chromosome aberration tests were positive (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). |
| 6 | Carcinogenicity | Not classified |
- |
- | - | In carcinogenicity tests in rats or mice dosed by feeding for two years, carcinogenicity was not observed (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). It was classified as "Not classified" because it was negative in carcinogenicity in 2 species of experimental animals. |
| 7 | Reproductive toxicity | Category 2 |
 Warning |
H361 |
P308+P313
P201 P202 P280 P405 P501 |
Among 2-generation reproductive toxicity tests using rats by oral route (diet administration), in one test, abnormality in offspring was not observed at the dose (300 ppm) at which inhibition of red blood cell cholinesterase activity was found in F0, F1 parent animals, in the other test, at the dose (1,500 ppm) at which reduced weight gain, feed intake reduction, and increased relative liver weight, etc. were found in F0, F1 parent animals, reduced weight gain observed in F1, F2 pups, in addition delayed sexual maturation (delayed preputial separation, delayed vaginal opening) in F1 offspring were found (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). In development toxicity tests using pregnant rats and pregnant rabbits by gavage administration (rats: 7 ? 19 days of pregnancy, rabbits: 6 ? 18 days of pregnancy), in rats, abnormality was not found in fetuses at the dose (100 mg/kg/day) at which maternal animal toxicity (salivation, increased absolute/relative liver weight) was observed, but in rabbits, increased post-implantation embryonic mortality was found at the dose (80 mg/kg/day) at which maternal animal toxicity (reduced weight gain, feed intake reduction) was observed (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). As above, it was classified in Category 2 for this hazard class because in a 2-generation reproductive toxicity test in rats, growth/development suppression was observed in next generation at the dose at which toxic effects occurred in parent animals, and in the developmental toxicity test in rabbits, increased post-implantation embryonic mortality was observed at the dose at which maternal animal toxicity occurred. Besides, the classification was changed because it was based on new information source that was available after the previous classification. |
| 8 | Specific target organ toxicity - Single exposure | Category 1 (nervous system) |
Danger |
H370 |
P308+P311
P260 P264 P270 P321 P405 P501 |
There is no data on single exposure in humans. In experimental animals, it is described that in a single oral dose study using rats and mice on this substance, bradykinesia, prone position, tachypnea, straub tail, convulsions, eyelid closure with lacrimation, and piloerection were observed but resolved at four days (rats) or three days (mice) after administration (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009), Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). Although minimal doses at which these symptoms appeared were not described, it is written that test doses were 360-1,548 mg/kg in rats and 592-4,827 mg/kg in mice, and a minimal lethal dose was 518 mg/kg in rats and 769 mg in mice (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009)). Therefore, it is thought that the doses where effects were seen are close to the minimal lethal dose which is within the range of Category 2. As for inhalation route, it is described that in a single 4-hour inhalation exposure study in rats, respiratory depression, sleep/coma, inanimation, piloerection, behavioral inhibition, back arch position, rough fur, crouching position, tremor, weakening, and gasping were observed, but survived animals recovered 13 days after exposure (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009), Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). Although minimal doses at which these symptoms appeared were not described, it is written that test doses were 0.25-1.48 mg/L and a minimal lethal dose was 0.80 mg/kg in males and 0.51 mg/kg in females (A pesticide abstract and evaluation report (Food and Agricultural Materials Inspection Center, 2009)). Therefore, it is thought that the doses where effects were seen are close to the minimal lethal dose which is within the range of Category 1. This substance is organophosphorus germicide, and organophosphorus pesticide (germicide) is generally known to cause effects on the nervous system in humans (IPCS, PIM G001 (1989)). From the above, it was classified in Category 1 (nervous system). The category was changed from the previous classification. |
| 9 | Specific target organ toxicity - Repeated exposure | Category 2 (nervous system) |
Warning |
H373 |
P260
P314 P501 |
There is no information in humans. In experimental animals, in a 90-day repeated dose neurotoxicity test using rats dosed by feeding, increase or increase tendency in startle reflex and decrease in total momentum and walk momentum were observed at 1,000 ppm (male: 70 mg/kg/day, female: 80 mg/kg/day) corresponding to Category 2, and in a 2-year repeated dose toxicity/carcinogenicity test using rats dosed by feeding, inhibition of red blood cell and brain cholinesterase activity (20% or more), etc. were observed at 1,000 ppm (male: 36.8 mg/kg/day, female: 45.5 mg/kg/day) corresponding to Category 2 (Risk Assessment Report (Pesticides) (Food Safety Commission, 2009)). Therefore, it was classified in Category 2 (nervous system). |
| 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) | Category 1 |
 Warning |
H400 |
P273
P391 P501 |
From 48-hour EC50 = 0.859 mg/L for crustacea (Daphnia magna) (Results of Aquatic Toxicity Tests of Chemicals conducted by Environment Agency in Japan (Environment Agency, 1997), Environmental Risk Assessment for Chemical Substances vol. 2 (Ministry of the Environment, 2003)), it was classified in Category 1. |
| 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 (BIOWIN), and 21-day NOEC (reproduction) = 0.1 mg/L for crustacea (Daphnia magna) (Results of Aquatic Toxicity Tests of Chemicals conducted by Environment Agency in Japan (Environment Agency, 1997), Environmental Risk Assessment for Chemical Substances vol. 2 (Ministry of the Environment, 2003)). If acute toxicity data are used for a trophic level for which chronic toxicity data are not obtained, then it is classified in Category 2 due to being not rapidly degradable (BIOWIN), and 96-hour LC50 = 3.36 mg/L for fish (Oryzias latipes) (Results of Aquatic Toxicity Tests of Chemicals conducted by Environment Agency in Japan (Environment Agency, 1997), Environmental Risk Assessment for Chemical Substances vol. 2 (Ministry of the Environment, 2003)). It was classified in Category 1 by drawing a comparison between the above results. |
| 12 | Hazardous to the ozone layer | Classification not possible |
- |
- | - | No data available. |
NOTE:
|
* 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. |