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4,4'-(Phenylphosphinylidene)dibenzoic acid

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CAS No.:

803-19-0

Port:

shanghai

Packaging:

25kg/bag

Price valid (until):

2026-04-10

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Shandong zhishang chemical Co.,Ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Dichloromethane,Linocaine hydrochloride

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Product Description
Seller Information
Inquiry History

Description

Product Detail

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Items	Specifications
Product name	Bis(4-carboxyphenyl)phenyl-phosphine oxide
Cas number	803-19-0
Appearance	White powder

Certificates

Basic Info

Product Name:

4,4′-(Phenylphosphinylidene)bis[benzoic acid]

Other Name:

Benzoic acid,4,4′-(phenylphosphinylidene)bis-;Benzoic acid,4,4′-(phenylphosphinylidene)di-;4,4′-(Phenylphosphinylidene)bis[benzoic acid];Bis(4-carboxyphenyl)phenyl phosphine oxide

CAS No.:

803-19-0

Molecular Formula:

C20H15O5P

InChIKeys:

InChIKey=UVTXHAOLTBFLDL-UHFFFAOYSA-N

Molecular Weight:

366.3

Exact Mass:

366.30

EC Number:

212-355-0

DSSTox ID:

DTXSID70230216

Categories:

Organic Reagents

Characteristics

PSA:

101.48000

XLogP3:

2.22

Density:

1.4±0.1 g/cm3

Melting Point:

307-310 °C

Boiling Point:

642.9±55.0 °C at 760 mmHg

Flash Point:

342.6±31.5 °C

Refractive Index:

1.668

Water Solubility:

73.26mg/L(23 ºC)

See More 4,4′-(Phenylphosphinylidene)bis[benzoic acid] Properties 

Hazard Identification

Classification of the substance or mixture

no data available

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	no data available
Signal word	no data available
Hazard statement(s)	no data available
Prevention	no data available
Response	no data available
Storage	no data available
Disposal	no data available

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More 4,4′-(Phenylphosphinylidene)bis[benzoic acid] Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Dichloromethane,Linocaine hydrochloride

Location:
BUILDING 1,HISENSE INTELLIGENCE VALLEY,NO.2116,OF PHOEIX ROAD, HIGH-TECH ZONE ,JINAN CITY ,SHANDONG PROVINCE,CHINA

Payment Terms:
D/P,L/C,D/A

Average lead Time:
15

Total Annual Revenue:
$10 million-$25 million

Total Employees:
11-50

Year of Establishment:
2016

Shandong zhishang chemical Co.,Ltd is a leading Manufactory supplier of Adenosine, 5′-[[(3S)-3-amino-3-carboxypropyl]methylsulfonio]-5′-deoxy-, sulfate, 4-methylbenzenesulfonate sulfate (1:1:1:1), Ethylene oxide-propylene oxide copolymer, Strontium carbonate based in Jinan, Shandong, China. With a commitment to quality and customer satisfaction, Shandong zhishang chemical Co.,Ltd has become a trusted name in the industry. Our product line includes a range of high-quality Adenosine, 5′-[[(3S)-3-amino-3-carboxypropyl]methylsulfonio]-5′-deoxy-, sulfate, 4-methylbenzenesulfonate sulfate (1:1:1:1), Ethylene oxide-propylene oxide copolymer, Strontium carbonate, which are available at competitive prices. Shandong zhishang chemical Co.,Ltd has established itself as a reliable supplier of chemical products on the echemi.com.

Inquiry History

1 Inquiries

Country	Product	Purchase Quantity	Date Posted
Switzerland	4-[(4-carboxyphenyl)-phenylphosphoryl]benzoic acid	25 KG	Mar 9, 2026

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