CAS 797-70-6 SDS Request & Safety Reference

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

797-70-6

Chemical name

Tris(4-methylphenyl)phosphine oxide

Molecular formula

C21H21OP

Molecular weight

320.4 g/mol

Synonyms

Phosphine oxide, tris(p-tolyl)-; Tri-p-tolylphosphine Oxide; 1-[bis(4-methylphenyl)phosphoroso]-4-methylbenzene; Tris(p-tolyl)phosphine oxide; Tri-p-tolylphosphineOxide; tri-p-tolylphos-phine oxide; 1-(bis-p-tolylphosphoryl)-4-methyl-benzene; Tris(4-methylphenyl)(oxo)-lambda~5~-phosphane

InChIKey

SPKBYIYIZQARNX-UHFFFAOYSA-N

PubChem CID

120383

Hazard / GHS Reference

Signal word

Danger

Catalog reference cue; confirm supplier documentation before use.

Hazard statements

H315, H317, H319, H335, H360

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
If exposed to a harmful environment, use a P95 (US) or P1 (EU, UK 143) particulate respirator. 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).
Waste product. Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion treatment and washing if soluble with flammable solvents. Burn contaminated packaging. Contaminated packaging is to be disposed of as unused product.

First Aid / Accidental Release

Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
If inhaled, move the patient 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 inhalation of vapors, mists or gases. Ensure adequate ventilation. Evacuate personnel to a safe area. Avoid inhalation of dust. For personal protection, see
Do not allow the product to enter drains.
Waste product. Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion treatment and washing if soluble with flammable solvents. Burn contaminated packaging. Contaminated packaging is to be disposed of as unused product.

Firefighting / Stability

If necessary, wear a self-contained breathing apparatus for firefighting.
Reactivity
Carbon monoxide, carbon dioxide, phosphorus oxides

Physical and Chemical Reference

XLogP

5.1

Catalog reference value; verify against supplier SDS before use.

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.

Identity

CAS Number

797-70-6

Chemical name

Tris(4-methylphenyl)phosphine oxide

Molecular formula

C21H21OP

Molecular weight

320.4 g/mol

Synonyms

InChIKey

SPKBYIYIZQARNX-UHFFFAOYSA-N

PubChem CID

120383

Handling & PPE

Keep container tightly closed and dry. Store in a well-ventilated place. Recommended storage conditions: nitrogen-purged, 2-8°C
If exposed to a harmful environment, use a P95 (US) or P1 (EU, UK 143) particulate respirator. 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).
Waste product. Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion treatment and washing if soluble with flammable solvents. Burn contaminated packaging. Contaminated packaging is to be disposed of as unused product.

First Aid / Accidental Release

Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
If inhaled, move the patient 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 inhalation of vapors, mists or gases. Ensure adequate ventilation. Evacuate personnel to a safe area. Avoid inhalation of dust. For personal protection, see
Do not allow the product to enter drains.
Waste product. Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion treatment and washing if soluble with flammable solvents. Burn contaminated packaging. Contaminated packaging is to be disposed of as unused product.

CAS 797-70-6 Safety Reference and Supplier SDS Request

Documentation status

Identity

Hazard / GHS Reference

Handling & PPE

First Aid / Accidental Release

Firefighting / Stability

Physical and Chemical Reference

Transport / Shipment Review

CAS 797-70-6 Safety Reference and Supplier SDS Request

Documentation status

Identity

Hazard / GHS Reference

Handling & PPE

First Aid / Accidental Release

Firefighting / Stability

Physical and Chemical Reference

Transport / Shipment Review