GHS Classification Result

Chemical Name:2-(2,4,5-Trichlorophenoxy)propionic acid; silvex
CAS:93-65-2

Result:
ID: 104-2
Classifier: Ministry of Health, Labour and Welfare (MHLW), Ministry of the Environment (MOE)
Year Classified: FY2007
Reference Manual: GHS Classification Manual (10 Feb, 2006)
Technical Guidance Document on the GHS Classification (6 Dec, 2005)

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives Not applicable - - - - There are no chemical groups associated with explosive properties present in the molecules.
2 Flammable gases (including chemically unstable gases) Not applicable - - - - Solid
3 Aerosols Not applicable - - - - Not aerosol products.
4 Oxidizing gases Not applicable - - - - Solid
5 Gases under pressure Not applicable - - - - Solid
6 Flammable liquids Not applicable - - - - Solid
7 Flammable solids Classification not possible - - - - No data available.
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
10 Pyrophoric solids Classification not possible - - - - No data available.
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 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
14 Oxidizing solids Classification not possible - - - - Classification not possible due to lack of data.
15 Organic peroxides Not applicable - - - - Organic compounds containing no bivalent -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 4 Warning H302: Harmful if swallowed P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P330: Rinse mouth.
P501: Dispose of contents/container to ...
Based on its rat oral LD50 of 650 mg/kg (HSDB, 2005), sivex (CAS: 93-72-1) was classified into Category 4.
1 Acute toxicity (Dermal) Category 3 Danger H311: Toxic in contact with skin P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
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 its LD50 of > 0.32E+04 mg/kg reported in a rabbit dermal test (RTECS, accessed in November 2007), classification of silvex (CAS: 93-72-1) falls under Category 4 or the "Not classified" category. More refined classification is not possible.
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Since the substance is a solid, it was classified into the "Not applicable" category.
1 Acute toxicity (Inhalation: Vapours) Classification not possible - - - - Silvex (CAS: 93-72-1): No data available.
1 Acute toxicity (Inhalation: Dusts and mists) Not classified - - - - Silvex (CAS: 93-72-1): No data available.
2 Skin corrosion/irritation Classification not possible - - - - Silvex (CAS: 93-72-1) is reported to be irritating to the skin (HSDB, 2005). However, since no detailed information is provided, classification is not possible.
3 Serious eye damage/eye irritation Classification not possible - - - - Silvex (CAS: 93-72-1) is reported to be irritating to the eyes (HSDB, 2005). However, since no detailed information is provided, classification is not possible.
4 Respiratory sensitization Classification not possible - - - - MCPP (CAS: 93-65-2): No data available.
4 Skin sensitization Classification not possible - - - - MCPP (CAS: 93-65-2): An open epicutaneous test using guinea pigs, gave negative results (IUCLID, 2000). However, since no other test results are available, classification is not possible.
5 Germ cell mutagenicity Classification not possible - - - - Silvex (CAS: 93-72-1): No data available.
6 Carcinogenicity Category 2 Warning H351: Suspected of causing cancer 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 ...
Since chlorophenoxy herbicides are rated as "2B" by IARC S7 (1987), the substance was classified into Category 2.
7 Reproductive toxicity Classification not possible - - - - In the study on silvex (CAS: 93-72-1), cleft palates were observed in the offspring of mice treated orally at 379 mg/kg/day during gestation (IRIS, 1988). The effect of the treatment on dams is unclear. Based on this information, the substance was classified into Category 2.
8 Specific target organ toxicity - Single exposure Classification not possible - - - - Silvex (CAS: 93-72-1): No data available.
9 Specific target organ toxicity - Repeated exposure Classification not possible - - - - In a study in which dogs were fed with a diet containing silvex (CAS: 93-72-1) for 2 years, histological changes were observed in the liver in subject groups that received the doses which is equivalent to Category 1 doses (IRIS, 1988). Thus, the substance was classified into Category 1 (liver).
10 Aspiration hazard Classification not possible - - - - Silvex (CAS: 93-72-1): 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) Classification not possible - - - - No data available.
11 Hazardous to the aquatic environment (Long-term) Classification not possible - - - - No data available.


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 SDS by MHLW

MHLW Website (in Japanese Only)


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