GHS Classification Result

Chemical Name:O-Ethyl O-2-(isopropoxycarbonyl)phenyl N-isopropylphosphoramidothioate; Isofenphos
CAS:25311-71-1

Result:
ID: 325
Classifier: Inter-ministerial Committee on GHS
Year Classified: FY2006
Reference Manual: GHS Classification Manual (10 Feb, 2006)

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives Not applicable - - - - Containing no chemical groups with explosive properties
2 Flammable gases (including chemically unstable gases) Not applicable - - - - Classified as "liquid" according to GHS definition
3 Aerosols Not applicable - - - - Not aerosol products
4 Oxidizing gases Not applicable - - - - Classified as "liquid" according to GHS definition
5 Gases under pressure Not applicable - - - - Classified as "liquid" according to GHS definition
6 Flammable liquids Not classified - - - - The flash point is >115degC (IUCLID (2000))
7 Flammable solids Not applicable - - - - Classified as "liquid" according to GHS definition
8 Self-reactive substances and mixtures Not applicable - - - - Containing no chemical groups with explosive or self-reactive properties
9 Pyrophoric liquids Classification not possible - - - - No data available
10 Pyrophoric solids Not applicable - - - - Classified as "liquid" according to 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 - - - - Stable to water (water solubility: 23.8ppm (20degC), Merck (13th, 2001))
13 Oxidizing liquids Classification not possible - - - - Classification not possible due to lack of data, though being organic compounds containing oxygen bound to the elements other than carbon and hydrogen.
14 Oxidizing solids Not applicable - - - - Classified as "liquid" according to GHS definition
15 Organic peroxides Not applicable - - - - Organic compounds containing no "-O-O-" structure
16 Corrosive to metals Classification not possible - - - - No data available

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity (Oral) Category 1 Danger H300: Fatal if swallowed P301+P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P321: Specific treatment (see ... on this label).
P330: Rinse mouth.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the LD50 value of 4.2mg/kg calculated from the testing data of rat LD50 (oral route) of 2.11mg/kg (RTECS (2006)), 20mg/kg (IUCLID (2000)) and 28mg/kg (HSDB (2006)).
1 Acute toxicity (Dermal) Category 2 Danger H310: Fatal in contact with skin P302+P350: IF ON SKIN: Gently wash with plenty of soap and water.
P262: Do not get in eyes, on skin, or on clothing.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P322: Specific treatment (see ... on this label).
P361: Remove/Take off immediately all contaminated clothing.
P363: Wash contaminated clothing before reuse.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the rabbit LD50 (dermal route) value of 162mg/kg (RTECS (2006)) and 162mg/kg (HSDB (2006)).
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Due to the fact that the substance is "liquid" according to the GHS definition and inhalation of its gas is not expected.
1 Acute toxicity (Inhalation: Vapours) Classification not possible - - - - No data available
1 Acute toxicity (Inhalation: Dusts and mists) Category 2 Danger H330: Fatal if inhaled P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: Wear respiratory protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P320: Specific treatment is urgent (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the LC50 value of 0.144mg/L calculated from the testing data of rat LC50 (inhalation of dust/mist) of 0.144mg/L (4 hours) (RTECS (2006)), 0.2mg/L (4 hours) (IUCLID (2000)) and 0.3mg/L (4 hours) (HSDB (2006)).
2 Skin corrosion/irritation Category 3 - Warning H316: Causes mild skin irritation P332+P313: If skin irritation occurs: Get medical advice/attention. Based on the description in the report on rabbit skin irritation tests (4 hour application) (IUCLID (2000)): "Slightly irritating."
3 Serious eye damage/eye irritation Category 2B - Warning H320: Causes eye irritation P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P264: Wash ... thoroughly after handling.
Based on the description in the report on rabbit eye irritation tests (IUCLID (2000)): "Slightly irritating."
4 Respiratory sensitization Classification not possible - - - - No data available
4 Skin sensitization Classification not possible - - - - The substance could be "Not classified" based on the negative results obtained in a guinea pig Maximization test (IUCLID (2000)). However, classification is not possible with only one set of data available.
5 Germ cell mutagenicity Classification not possible - - - - Insufficient data available
6 Carcinogenicity Classification not possible - - - - Classification not possible based on expert judgment in the absence of existing classification, though some data are available on carcinogenicity studies with mice and rats.
7 Reproductive toxicity Category 2 Warning H361: Suspected of damaging fertility or the unborn child P308+P313: IF exposed or concerned: Get medical advice/attention.
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P281: Use personal protective equipment as required.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the evidence of adverse effects on the offspring at doses inducing parental toxicity, described in IUCLID (2000).
8 Specific target organ toxicity - Single exposure Category 1 (nervous system) Danger H370: Causes damage to organs (nervous system) P307+P311: IF exposed: Call a POISON CENTER or doctor/physician.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P321: Specific treatment (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the human evidence: "late progressive polyneuropathy followed by pyramidal findings in a 20-year old agricultural laborer who ingested Isofenphos solution during his work" (HSDB (2003)). Also based on the evidence from animal studies including "delayed neuropathy" (EHC 63 (1986)). The effects on humans are classified into Category 2 as the priority rating of the referenced studies is 2, whereas the effects on experimental animals were observed at dosing levels within the guidance value ranges for Category 1 (nervous system), and thus classified into Category 1.
9 Specific target organ toxicity - Repeated exposure Category 1 (nervous system, testis) Danger H372: Cause damage to organs through prolonged or repeated exposure (nervous system, testis) P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P314: Get medical advice/attention if you feel unwell.
P501: Dispose of contents/container to ...
Based on the evidence from animal studies: "toxic signs, such as salivation and muscle twitching, were observed," "hypoplasia of the testis were observed in several males; some exhibited foci of softening ("degeneration processes") in the brain stem" (JMPR 552, 1982), "pathological lesions, such as severe degeneration of the pathways in the spinal cord and axonal degeneration in the medulla oblongata and cerebellum, which are typical of delayed neuropathy" (JMPR 744, 1986). The effects on experimental animals were observed at dosing levels within the guidance value ranges for Category 1.
10 Aspiration hazard Classification not possible - - - - No data available

ENVIRONMENTAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
11 Hazardous to the aquatic environment (Acute) Category 1 Warning H400: Very toxic to aquatic life P273: Avoid release to the environment.
P391: Collect spillage.
P501: Dispose of contents/container to ...
It was classified into Category 1 from 48 hours EC50=1.6ppb of the crustacea (Daphnia magna) (AQUIRE, 2003).
11 Hazardous to the aquatic environment (Long-term) Category 1 Warning H410: Very toxic to aquatic life with long lasting effects P273: Avoid release to the environment.
P391: Collect spillage.
P501: Dispose of contents/container to ...
Since acute toxicity was Category 1 and there was no rapidly degrading (BIOWIN), and since there wasbio-accumulation (log Kow=4.12 (PHYSPROP Database, 2005)), it was classified into Category 1.


NOTE:
* 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.

Reference:
Reference Manual

Definitions / Abbreviations

Model Label by MHLW

MHLW Website (in Japanese Only)

Model SDS by MHLW

MHLW Website (in Japanese Only)


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