Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4-(Diphenylphosphino)benzoic acid
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-(Diphenylphosphino)benzoic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

2129-31-9

2129-31-9 structure

2129-31-9 structure

Name: 4-(Diphenylphosphino)benzoic acid
Chemical Name: 4-diphenylphosphanylbenzoic acid
CAS Number: 2129-31-9
Molecular Formula: C₁₉H₁₅O₂P
Molecular Weight: 306.29500
Catalog: Organic raw materials Organic phosphine compound
Create Date: 2018-09-02 13:11:28
Modify Date: 2025-08-25 13:25:26

Name	4-diphenylphosphanylbenzoic acid
Synonyms	MFCD00407264 Ph2PC6H4COOH 4-carboxyphenyldiphenylphosphine 4-(diphenyl-phosphino)-benzoic acid 4-Diphenylphosphanyl-benzoesaeure Diphenyl(p-carboxyphenyl) phosphine 4-(diphenylphosphanyl)benzonic acid 4-(Diphenylphosphanyl)benzoic acid 4-(Diphenylphosphino)benzoic acid

Boiling Point	448ºC at 760 mmHg
Melting Point	157-160ºC(lit.)
Molecular Formula	C₁₉H₁₅O₂P
Molecular Weight	306.29500
Flash Point	224.7ºC
Exact Mass	306.08100
PSA	50.89000
LogP	3.14300
Appearance	Crystalline Powder \| White to yellow
Vapour Pressure	8.24E-09mmHg at 25°C

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	36/37/38
Safety Phrases	26-37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2916399090

Precursor 9
619-58-9 829-85-6 5068-16-6 124-38-9
734-59-8 52509-80-5 5032-51-9 17763-71-2
99-76-3
DownStream 6
3547-02-2 1437785-37-9 2272-04-0 4233-13-0
5032-51-9 5068-15-5

HS Code	2916399090
Summary	2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

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