[4-(tert-butylsulfamoyl)-3-methylphenyl]boronic acid

Combi-Blocks, Inc.

Revision date : 2026-03-06

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Health risk rating 1
Safety risk rating 1
Environmental risk rating 1

General Information

Revision date

2026-03-06

Product name

[4-(tert-butylsulfamoyl)-3-methylphenyl]boronic acid

CAS No.

2377606-59-0

supplier name

Combi-Blocks, Inc.

Emergency telephone

1-858-635-8950, 1-800-535-5053, 1-352-323-3500

Icons in SDS

M004 M009 M010 M011

Company Information

company name

Combi-Blocks, Inc.

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

sales@combi-blocks.com

Section 2

SECTION 2: Hazards identification

Classification of the substance or mixture ACUTE TOXICITY (oral) - Category 4 ACUTE TOXICITY (dermal) - Category 4 ACUTE TOXICITY (inhalation) - Category 2 SKIN CORROSION/IRRITATION - Category 2 SERIOUS EYE DAMAGE/EYE IRRITATION - Category 1 SKIN SENSITISATION - Category 1 GERM CELL MUTAGENICITY - Category 1B CARCINOGENICITY - Category 1B SPECIFIC TARGET ORGAN TOXICITY - REPEATED EXPOSURE - Category 2 SHORT-TERM (ACUTE) AQUATIC HAZARD - Category 1 LONG-TERM (CHRONIC) AQUATIC HAZARD - Category 1

Ingredient(s) with unknown acute toxicity

5.6% Percentage of the mixture consisting of ingredient(s) of unknown acute dermal toxicity: 77.6% toxicity: 40.2% Percentage of the mixture consisting of ingredient(s) of unknown hazards to the aquatic environment: 42%

Signal word

Danger

Hazard statements

Harmful if swallowed or in contact with skin. Causes skin irritation. May cause an allergic skin reaction. Causes serious eye damage. Fatal if inhaled. May cause genetic defects. May cause cancer. May cause damage to organs through prolonged or repeated exposure. (brain) Very toxic to aquatic life with long lasting effects.

Prevention

Obtain, read and follow all safety instructions before use. Wear protective gloves, protective clothing, eye protection, face protection, or hearing protection. Wear respiratory protection. Use only outdoors or in a well-ventilated area. Avoid release to the environment. Do not breathe vapour. Do not eat, drink or smoke when using this product. Wash hands thoroughly after handling. Do not touch eyes. Contaminated work clothing should not be allowed out of the workplace.

Response

Collect spillage. IF exposed or concerned, get medical advice. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Get emergency medical help immediately. IF SWALLOWED: Get medical help. Rinse mouth. IF ON SKIN: Get medical help. Wash with plenty of water. If skin irritation or rash occurs Get medical help. If skin irritation occurs Get medical help. Take off contaminated clothing and wash it before reuse. IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Get medical help. Get medical help if you feel unwell.

Storage

Store locked up.

Disposal

Dispose of contents and container in accordance with all local, regional, national and international regulations.

Other hazards which do not result in classification

Prolonged or repeated contact may dry skin and cause irritation.

2.1 Classification of the substance or mixture

ACUTE TOXICITY (oral) - Category 4 substance or mixture ACUTE TOXICITY (dermal) - Category 4 ACUTE TOXICITY (inhalation) - Category 2 SKIN CORROSION/IRRITATION - Category 2 SERIOUS EYE DAMAGE/EYE IRRITATION - Category 1 SKIN SENSITISATION - Category 1 GERM CELL MUTAGENICITY - Category 1B CARCINOGENICITY - Category 1B SPECIFIC TARGET ORGAN TOXICITY - REPEATED EXPOSURE - Category 2 SHORT-TERM (ACUTE) AQUATIC HAZARD - Category 1 LONG-TERM (CHRONIC) AQUATIC HAZARD - Category 1 Percentage of the mixture consisting of ingredient(s) of unknown acute oral toxicity: 5.6% Percentage of the mixture consisting of ingredient(s) of unknown acute dermal toxicity: 77.6% Percentage of the mixture consisting of ingredient(s) of unknown acute inhalation toxicity: 40.2% Percentage of the mixture consisting of ingredient(s) of unknown hazards to the aquatic environment: 42%

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