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Triphenylphosphine oxide

BGC Id:520109231054
CAS No:791-28-6
Synonyms:tpo ; triphenylphosphinoxid ; triphenylphosphanoxid ; tppo ; (c6h5)3p=o ; aurora ka-1603 ; triphenyl-phosphineoxid ; triphenylphosphanoxide ; orlistat usp rc c ; ph3po
Molecular Formula:C18H15OP
Molecular Weight:278.28
EINECS:212-338-8
Structural Formula

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The following 25 notable providers have been checked and can be recommended.
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Zehao Industry
Appearance White or light yellow crystalline powder
Assay ≥ 99.00%
Melting point 155.00 ~ 157.00℃
Residue on ignition ≤ 0.50%
Loss on drying ≤ 0.50%
Chemical-Suppliers
BLD Pharmatech
Smile code: O=P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3 MDL Number: MFCD00002080 Purity : 97% Available in stock: 43335 g
Chemical-Suppliers
Leap Chem
Molecular Formula: C18H15OP Molecular Weight: 278.28 Hazard Symbols: Xn,Xi UN Number: 3077 WGKGermany: 2 PackingGroup: III HS Code: 29310095

The last intensive check and update was carried out on 2025/09/17.

Identify

Synonyms:
tpo ; triphenylphosphinoxid ; triphenylphosphanoxid ; tppo ; (c6h5)3p=o ; aurora ka-1603 ; triphenyl-phosphineoxid ; triphenylphosphanoxide ; orlistat usp rc c ; ph3po
CAS:
791-28-6
EINECS:
212-338-8
Molecular Formula:
C18H15OP
MDL:
MFCD00002080

Properties

Molecular Weight:
278.28 g·mol−1
Density:
1,212 g/cm3
Melting point:
150-157 °C(lit.)
Boiling point:
360 °C
Flash point:
180 °C
Solubility:
methanol: 25 mg/mL, clear
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Safety Information

Hazard Classes:
Risk Codes:
22-36/37/38-52/53 (R)
Safety Codes:
26-61-36 (S)
WGK Germany:
2
RTECS:
SZ1676000
Storage temperature:
Store at RT.

What other providers are available for CAS 791-28-6?

In addition to the providers presented here for Triphenylphosphine oxide with the CAS number 791-28-6, there are other 2 providers with slightly different product names available for this CAS number.

+1 additional providers that we know from the past
+1 additional providers that we know from the past




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