GHS Classification Result

Chemical Name:Methylenebis(4,1-cyclohexylene) diisocyanate
CAS:5124-30-1

Result:
ID: 212
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 200degC (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 applicable - - - - Containing no metals or metalloids (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At)
13 Oxidizing liquids Not applicable - - - - Organic compounds containing oxygen (but not fluorine and chlorine), with the oxygen bound to carbon and hydrogen (but not to other elements)
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) Not classified - - - - Based on the rat LD50 (oral route) value of 9,900mg/kg (MOE Risk Assessment vol. 2).
1 Acute toxicity (Dermal) Not classified - - - - Based on the rabbit LD50 (dermal route) value of >10,000mg/kg (CERI Hazard Data 2000-48 (2001)).
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) Category 1 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 guinea pig LD50 (4 hours) value of 0.026mg/L (equivalent to 2.4ppm), calculated from the testing data of guinea pig LC50 (1-hour inhalation) of 0.051mg/L (MOE Risk Assessment vol. 2 (2003)), was lower than 90% of the saturated vapour concentration (20ppm) under a saturated vapour pressure of 2.1*10^-3 Pa (25degC), the substance was considered as "vapour containing substantially no mist" and was classified based on standard values of gas.
1 Acute toxicity (Inhalation: Dusts and mists) Classification not possible - - - - No data available
2 Skin corrosion/irritation Category 1 Danger H314: Causes severe skin burns and eye damage P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P321: Specific treatment (see ... on this label).
P363: Wash contaminated clothing before reuse.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the description in the report on rabbit skin irritation tests (ACGIH (7th, 2001)): "The substance produced severe skin irritation." Also based on the description in the report on guinea pig skin irritation tests: "severe erythema and edema were observed." Although the substance, as a severe skin irritant, is classified into Category 1-2 in the absence of data on reversibility, it should be placed in Category 1 from the viewpoint of safety.
3 Serious eye damage/eye irritation Category 1 Danger H318: Causes serious eye damage P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
Based on the description in the report on rabbit eye irritation tests (RTECS (2005)): "Severely irritating." Although classified as Category 1-2A in the absence of data on reversibility, the substance should be placed in Category 1 from the viewpoint of safety.
4 Respiratory sensitization Classification not possible - - - - Insufficient data available
4 Skin sensitization Category 1 Warning H317: May cause an allergic skin reaction P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P321: Specific treatment (see ... on this label).
P363: Wash contaminated clothing before reuse.
P501: Dispose of contents/container to ...
Based on the description in the report on guinea pig skin sensitization tests (ACGIH (7th, 2001)): "Skin sensitization: positive." Also based on three cases of skin sensitization reported in human epidemiological studies (MOE Risk Assessment vol. 2).
5 Germ cell mutagenicity Classification not possible - - - - Classification not possible due to the insufficiently of data (no data available on in vivo mutagenicity/genotoxicity tests)
6 Carcinogenicity Classification not possible - - - - No data available
7 Reproductive toxicity Classification not possible - - - - No data available
8 Specific target organ toxicity - Single exposure Category 1 (nervous system, respiratory system) Danger H370: Causes damage to organs (nervous system, respiratory 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 including "obstructive impairment of pulmonary function" (MOE Risk Assessment vol. 2 (2003)), and the evidence from animal studies including "respiratory effects with tremor and spasm, severe pulmonary congestion and edema" (CERI Hazard Data 2000-48 (2001)). The effects on experimental animals were observed at dosing levels within the guidance value ranges for Category 1.
9 Specific target organ toxicity - Repeated exposure Classification not possible - - - - Insufficient data available
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 ...
Since a potential that relevant toxicity was discovered in the water solubility (0.121mg/L(PHYSPROP Database, 2005)) of this substance cannot be denied from 96-hour LC50=1.2mg/L of tthe fish (Zebrafish) (CERI Hazard Data, 2002), it was classified into Category 1.
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 ...
Although acute toxicity is Category 1 and bio-accumulation is low (log Kow=2.14(CERI Hazard Data, 2002)), since there was no rapidly degrading (the decomposition by BOD: 0%(Existing Chemical Safety Inspections Data)), 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 SDS by MHLW

MHLW Website (in Japanese Only)


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