General Information
Revision date
2026-03-06
Product name
1H-Pyrazole-3-boronic acid
Product Synonyms
1H-Pyrazole-5-boronic acid
CAS No.
376584-63-3
supplier name
Combi-Blocks, Inc.
Emergency telephone
1-858-635-8950, 1-800-535-5053, 1-352-323-3500
Icons in SDS
Company Information
company name
Combi-Blocks, Inc.
e-mail address of the competent person responsible for the Safety Data Sheet
sales@combi-blocks.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H302, H315, H319, H335
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Long term hazards
Category 1 aquatic hazard
Other hazards
None known
Signal word
Danger
Hazard statements
H302 Harmful if swallowed. H311 Toxic in contact with skin. H315 Causes skin irritation. H317 May cause an allergic skin reaction. H319 Causes serious eye irritation. H373 May cause damage to organs (Stomach, large intestine, lymph node) through prolonged or repeated exposure if swallowed. H410 Very toxic to aquatic life with long lasting effects.
Prevention
P260 Do not breathe mist or vapours. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P272 Contaminated work clothing must not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P302 + P352 + P312 IF ON SKIN: Wash with plenty of water. Call a POISON CENTER/ doctor if you feel unwell. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P314 Get medical advice/ attention if you feel unwell. P333 + P313 If skin irritation or rash occurs: Get medical advice/ attention. P337 + P313 If eye irritation persists: Get medical advice/ attention. P361 + P364 Take off immediately all contaminated clothing and wash it before reuse. P391 Collect spillage.
Storage
P405 Store locked up.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Hazards for the product as supplied Acute toxicity (Oral) : Category 4 Acute toxicity (Dermal) : Category 3 Skin irritation : Category 2 Eye irritation : Category 2A Skin sensitisation : Category 1 Specific target organ : Category 2 (Stomach, large intestine, lymph node) toxicity - repeated exposure (Oral) Short-term (acute) : Category 1 aquatic hazard Long-term (chronic) : Category 1 aquatic hazard Other hazards
