GHS Classification Result

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GENERAL INFORMATION

Item Information
CAS number 558-25-8
Chemical name Methanesulfonyl fluoride
Substance ID 23A5188
Fiscal year of classification conducted FY2011
Classifier(s) (Ministries) Ministry of Health, Labour and Welfare (MHLW), Ministry of the Environment (MOE)
New/Revised New
Download in Excel format Excel file

REFERENCE INFORMATION

Item Information
Guidance used for classification (External link) Physical Hazards & Health Hazards: GHS Classification Guidance by the Japanese Government (July, 2010)
Environmental Hazards: UN GHS Document (4th revised edition)
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

PHYSICAL HAZARDS

Hazard class Classification Pictogram
(Code: symbol)
Signal word
Code
(Hazard statement)
Code
(Precautionary statement)
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 - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
3 Aerosols Not applicable - - - Not an aerosol product.
4 Oxidizing gases Not applicable - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
5 Gases under pressure Not applicable - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
6 Flammable liquids Classification not possible - - - No data.
7 Flammable solids Not applicable - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
8 Self-reactive substances and mixtures Classification not possible - - - There is a chemical group present in the molecule associated with a self-reactive property (sulfonyl halides), but the classification is not possible due to no data.
9 Pyrophoric liquids Classification not possible - - - No data.
10 Pyrophoric solids Not applicable - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
11 Self-heating substances and mixtures Classification not possible - - - No established test method suitable for liquid substances.
12 Substances and mixtures which, in contact with water, emit flammable gases Not applicable - - - Not containing metals or semimetals (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At).
13 Oxidizing liquids Classification not possible - - - No data.
14 Oxidizing solids Not applicable - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
15 Organic peroxides Not applicable - - - An organic compound that does not contain -O-O- structure.
16 Corrosive to metals Classification not possible - - - No data.

HEALTH HAZARDS

Hazard class Classification Pictogram
(Code: symbol)
Signal word
Code
(Hazard statement)
Code
(Precautionary statement)
Rationale for the classification
1 Acute toxicity (Oral) Category 1

Danger
H300
P301+P310
P264
P270
P321
P330
P405
P501
From an LD50 value of 2 mg/kg bw for rats (HSDB (2007)), it was classified in Category 1.
1 Acute toxicity (Dermal) Classification not possible - - - Lack of data.
Besides, even in original literature, details of a reported LD50 value of 24 mg/kg bw for rats (GESTIS (Access on Dec. 2011)) from List 3 are unknown.
1 Acute toxicity (Inhalation: Gases) Not applicable - - - It is a liquid at normal temperatures (GESTIS (Access on Dec. 2011)).
1 Acute toxicity (Inhalation: Vapours) Category 1

Danger
H330
P304+P340
P403+P233
P260
P271
P284
P310
P320
P405
P501
From an LC50 value of 1 ppm/7h (= 1.32 ppm/4h) for rats in a 7-hour exposure (HSDB (2007)), it was classified in Category 1.
Besides, a reference value of gasses as a vapour with hardly included mist was applied because the LC50 value (1 ppm) is lower than 90 % of the saturated vapour pressure concentration (14342 ppm).
1 Acute toxicity (Inhalation: Dusts and mists) Classification not possible - - - No data.
2 Skin corrosion/irritation Category 1

Danger
H314
P301+P330+P331
P303+P361+P353
P305+P351+P338
P304+P340
P260
P264
P280
P310
P321
P363
P405
P501
From the information that it is extremely destructive to tissues of skin (HSDB (2007)), it was classified in Category 1.
3 Serious eye damage/eye irritation Category 1

Danger
H318
P305+P351+P338
P280
P310
From the information that it is extremely destructive to tissues of eyes (HSDB (2007)), it was classified in Category 1.
4 Respiratory sensitization Classification not possible - - - No data.
4 Skin sensitization Classification not possible - - - No data.
5 Germ cell mutagenicity Classification not possible - - - No data.
6 Carcinogenicity Classification not possible - - - No data.
7 Reproductive toxicity Classification not possible - - - No data.
8 Specific target organ toxicity - Single exposure Category 1 (nervous system, respiratory system)

Danger
H370
P307+P311
P260
P264
P270
P321
P405
P501
This substance is known as an acetylcholinesterase inhibitor and a potent methylating agent (HSDB (2007)).
Extremely toxic as an LC50 value (vapour) of 1.0 to 1.2 ppm (converted to a 4-hour equivalent: 0.0053 to 0.0064 mg/L) for rats in a 7-hour inhalation exposure (vapour) and the main symptoms caused by the acetylcholinesterase inhibition before deaths were reported. (RTECS (2009): original literature American Industrial Hygiene Association Journal (1979))
The information that inhalation in humans may be fatal as a result of spasm, inflammation and edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema (HSDB (2007)) indicates effects on the respiratory system as a methylating agent.
The above information from List 2 corresponds to Category 2, but it was classified in Category 1 (nervous system, respiratory system) by the expert judgment.
9 Specific target organ toxicity - Repeated exposure Category 1 (nervous system)

Danger
H372
P260
P264
P270
P314
P501
Severe clinical signs by exposure of this substance known as an acetylcholinesterase inhibitor and a potent methylating agent to humans include muscle fasciculation, weakness, respiratory failure, central nervous system depression, confusion, delirium, and coma (HSDB (2007)).
The above information from List 2 corresponds to Category 2, but it was classified in Category 1 (nervous system) by the expert judgment.
Besides, as animal tests, 3-month inhalation exposure (vapour) to rats at low concentrations of 20 or 100 ppb (seven hours/day, five days/week) reported no adverse effects except significantly decreased cholinesterase in red blood cell and brain at 100 ppb (RTECS (2009): original literature American Industrial Hygiene Association Journal (1979)).
10 Aspiration hazard Classification not possible - - - No data.

ENVIRONMENTAL HAZARDS

Hazard class Classification Pictogram
(Code: symbol)
Signal word
Code
(Hazard statement)
Code
(Precautionary statement)
Rationale for the classification
11 Hazardous to the aquatic environment (Acute) Classification not possible - - - No data.
11 Hazardous to the aquatic environment (Long-term) Classification not possible - - - No data.
12 Hazardous to the ozone layer Classification not possible - - - This substance is not listed in Annexes to the Montreal Protocol.


NOTES:
* 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.



Updated date:
2016/10/31 Addition of Rationale for the classification

List of GHS Classification Results