Thimerosal

Avocado Research Chemicals Ltd

Revision date : 2026-07-22

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GHS06 GHS08 GHS09
Health risk rating 4
Safety risk rating 1
Environmental risk rating 5

Note: Ingredients listed on restricted chemical lists

EC/CAS

54-64-8

Name of the chemical

Sodium o-(ethylmercurithio)benzoate

Concentration

>95

General Information

Version

6

Revision date

2026-07-22

Product name

Thimerosal

Product Synonyms

Merthiolate sodium; Thimerosal

CAS No.

54-64-8

supplier name

Avocado Research Chemicals Ltd

Emergency telephone

001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887

Icons in SDS

GHS06 GHS08 GHS09 M004 M009 M010 M011 M017

Company Information

company name

Avocado Research Chemicals Ltd

e-mail address of the competent person responsible for the Safety Data Sheet

begel.sdsdesk@thermofisher.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H300+H310+H330, H373, H410

Hazard statements

Code

Statements

H300+H310+H330

Fatal if swallowed, in contact with skin or if inhaled

Section 2

SECTION 2: Hazards identification

Physical State

Appearance/Odor

Solid Light cream Odorless Emergency Overview Fatal in contact with skin. Fatal if swallowed. Fatal if inhaled. Very toxic to aquatic life with long lasting effects. May cause damage to organs through prolonged or repeated exposure. Sensitivity to light. Classification of the substance or mixture Acute Oral Toxicity Category 2 Acute Dermal Toxicity Category 1 Acute Inhalation Toxicity - Dusts and Mists Category 2 Specific target organ toxicity - (repeated exposure) Category 2 Acute aquatic toxicity Category 1 Category 3 Chronic aquatic toxicity Category 1 Label Elements

Signal word

Danger Hazard Statements H373 - May cause damage to organs through prolonged or repeated exposure H410 - Very toxic to aquatic life with long lasting effects H300 + H310 + H330 - Fatal if swallowed, in contact with skin or if inhaled

Prevention

P262 - Do not get in eyes, on skin, or on clothing P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P280 - Wear protective gloves/protective clothing/eye protection/face protection P284 - Wear respiratory protection

Response

P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P310 - Immediately call a POISON CENTER or doctor P330 - Rinse mouth P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P361 + P364 - Take off immediately all contaminated clothing and wash it before reuse

Storage

P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P405 - Store locked up

Disposal

P501 - Dispose of contents/ container to an approved waste disposal plant

Other physicochemical hazards

None identified.

Health hazards

Fatal in contact with skin. Very toxic if swallowed. Fatal if inhaled. May cause damage to organs through prolonged or repeated exposure.

Environmental hazards

Very toxic to aquatic life with long lasting effects. . Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems. This product does not contain any known or suspected endocrine disruptors.

2.1 Classification of the substance or mixture

Acute Oral Toxicity Category 2 Acute Dermal Toxicity Category 1 Acute Inhalation Toxicity - Dusts and Mists Category 2 Specific target organ toxicity - (repeated exposure) Category 2 Acute aquatic toxicity Category 1 Category 3 Chronic aquatic toxicity

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