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CAS 903550-26-5Preliminary Safety ReferenceNot a supplier-issued SDSSupplier SDS by request

CAS 903550-26-5 Safety Reference and Supplier SDS Request

1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

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Preliminary reference disclaimer

This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.

Documentation status

Preliminary safety reference

Available

Supplier-issued SDS

Available by request

COA

Available by RFQ / lot confirmation

Transport classification

Requires shipment review

Identity

CAS Number

903550-26-5

Chemical name

1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Molecular formula

C14H23BN2O3

Molecular weight

278.16 g/mol

Synonyms

1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester; 1-(2-Tetrahydropyranyl)-1H-Pyrazole-5-Boronic acid pinacol ester; 1-(Tetrahydropyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester; 1-(oxan-2-yl)-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; 1-(Oxan-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; [1-(Tetrahydropyran-2-yl)-1H-pyrazol-5-yl]boronic acid pinacol ester; 1-(Tetrahydropyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole; 1-Tetrahydropyran-2-yl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole; 1-(TETRAHYDROPYRAN-2-YL)-5-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE; 1H-PYRAZOLE, 1-(TETRAHYDRO-2H-PYRAN-2-YL)-5-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-; 1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid, pinacol ester; (1-(TETRAHYDRO-2H-PYRAN-2-YL)-1H-PYRAZOL-5-YL)BORONIC ACID PINACOL ESTER

InChIKey

ZZRFDLHBMBHJTI-UHFFFAOYSA-N

PubChem CID

11587208

Hazard / GHS Reference

Signal word

Warning

Catalog reference cue; confirm supplier documentation before use.

Hazard statements

H302, H315, H319, H332, H335

Catalog reference cue; confirm supplier documentation before use.

Handling & PPE

  • Keep container tightly closed and dry. Store in a well-ventilated place. Recommended storage conditions: nitrogen-purged, 2-8°C
  • Avoid contact with skin and eyes. Avoid generating dust and aerosols. Provide appropriate ventilation in areas where dust is generated. General fire protection measures.
  • Use a P95 (US) or P1 (EU UK 143) particulate respirator if exposed to harmful environments. For higher level of protection, use an OV/AG/P99 (US) or ABEK-P2 (EU UK 143) gas filter. Respirators must be tested and approved by government standards such as NIOSH (US) or CEN (EU). Do not allow the product to enter drains.
  • Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with waste disposal license to handle this substance. Burn contaminated packaging in a chemical incinerator with post-combustion and scrubbing capabilities. Contaminated packaging is to be disposed of as unutilized product.

First Aid / Accidental Release

  • Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
  • If inhaled, move the person to fresh air. If breathing stops, perform artificial respiration. Consult a physician.
  • Rinse with plenty of water for at least 15 minutes and consult a physician.
  • Wash with soap and plenty of water. Consult a physician.
  • Do not generate dust when collecting and disposing. Sweep and shovel up. Place in a suitable closed container for disposal.
  • Use personal protective equipment and emergency procedures. Avoid dust generation. Avoid inhaling vapors, mists or gases. Ensure adequate ventilation. Evacuate personnel to a safe area. Avoid inhaling dust. See
  • Do not allow the product to enter drains.
  • Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with waste disposal license to handle this substance. Burn contaminated packaging in a chemical incinerator with post-combustion and scrubbing capabilities. Contaminated packaging is to be disposed of as unutilized product.

Firefighting / Stability

  • Reactivity
  • Carbon monoxide, carbon dioxide, boron oxides, nitrogen oxides

Physical and Chemical Reference

Physical property reference values are not available in the current MolGraph catalog record.

Transport / Shipment Review

Shipment review

Shipment details require review before fulfillment.

Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.

  • Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.