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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 70579Generated: October 23, 2026

Triphenylphosphine dibromide

DIBROMOTRIPHENYLPHOSPHORANE · Triphenyldibromophosphorane · SKL183 · phosphine dibromide · dibromo(triphenyl)- · dibromotriphenyl-phosphoran · DIBROMO TRIPHENYL PHOSPHINE · TRIPHENYLPHOSPHINE DIBROMIDE

https://huagongshe.com/en/chemical/70579

Triphenylphosphine dibromide molecular structure

Identifiers & Physical Properties

CAS No.1034-39-5
Molecular formulaC18H15Br2P
Average molar mass422.1 g/mol
Monoisotopic mass419.92781131 g/mol
SMILESBrP(Br)(c1ccccc1)(c1ccccc1)c1ccccc1
InChIKeyOCXGTPDKNBIOTF-UHFFFAOYSA-N
PubChem CID70579
EC No.213-855-1
DTXSIDDTXSID3061423

Chemical & Physical Properties

XLogP6.5
Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors0
Rotatable bonds3
Heavy atoms21
Formal charge0
Complexity285
Melting point235 °C (dec.) (lit.)
Storage conditionsInert atmosphere,Room Temperature
Physical stateCrystalline Powder
ColorLight yellow to light pink
SolubilitySoluble in water, dichloromethane, acetonitrile, phenyl cyanide, dimethyl formamide, ether, chloroform, alcohol, carbon tetrachloride, acetic acid and carbon disulfide. Sparingly soluble in phenyl chloride, triphenylphosphine and phenyl hydride. Insoluble in aqueous bromine.
SensitivityMoisture Sensitive
BRN917652
InChIInChI=1S/C18H15Br2P/c19-21(20,16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H
InChIKeyOCXGTPDKNBIOTF-UHFFFAOYSA-N
SMILESP(Br)(Br)(C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1
CAS DataBase Reference1034-39-5(CAS DataBase Reference)
FDA UNII7Y0J6R63JD
EPA Substance Registry SystemPhosphorane, dibromotriphenyl- (1034-39-5)
UNSPSC Code12352101
NACRESNA.22
GHS pictogramGHS05
Signal wordDanger
GHS hazard statementsH314
GHS precautionary statementsP260-P280-P301+P330+P331-P303+P361+P353-P305+P351+P338
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard symbolsC
Risk statements (R)34
Safety statements (S)26-36/37/39-45
UN transport numberUN 3261 8/PG 2
Water hazard class (WGK)3
F3-10-21
TSCA inventory statusTSCA listed
Hazard class8Skin Corr. 1B
Packing groupII
Customs code29319019
Storage class8A - Combustible corrosive hazardous materials
Limited quantities1 Kg (2.2 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

Safety & Regulations

GHS classificationDangerH314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 48 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationPhosphorane, dibromotriphenyl-: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesSkin Corr. 1B (100%)
F3-10-21
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
UN transport numberUN 3261 8/PG 2
Customs code29319019
Risk statements (R)34
Signal wordDanger
GHS pictogramGHS05
Hazard symbolsC
Safety statements (S)26-36/37/39-45
Hazard class8Skin Corr. 1B
Storage class8A - Combustible corrosive hazardous materials
Packing groupII
GHS hazard statementsH314
Limited quantities1 Kg (2.2 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
GHS precautionary statementsP260-P280-P301+P330+P331-P303+P361+P353-P305+P351+P338

Applications & Uses

Uses

Triphenylphosphine dibromide is used as a reagent for conversion of aldoximes into nitriles. It acts as a reagent for cleavage of acetals. It reacts with amines to give iminophosphoranes. Further, it serves as a reagent in the preparation of alkyl and aryl bromides from alcohols and phenols without rearrangement.

Triphenylphosphine dibromide|Huagongshe