Copper(I) diphenylphosphinate

CAS 1011257-42-3C12H10CuO2P1280.73 g/mol1

As of October 2026, the China regional price index for Copper(I) diphenylphosphinate (CAS 1011257-42-3) at 90% purity is $21.52 per 1 g, the median of 9 sources. The US regional index for the same specification and package is $59.76, from 1 source. These are research reference indexes in USD, not supplier quotations. Copper(I) diphenylphosphinate is also known as Copper(1+) diphenylphosphinate, Phosphinic acid, P,P-diphenyl-, copper(1+) salt (1:1).

Review safety sources. Verify before use.

Market Intelligence Snapshot

Market Intelligence Snapshot

90% · 1 g · Regional reference indexes

US Regional Index
$59.76

Per 1 g basis

China Regional Index
$21.52

Per 1 g basis

Regional Gap
64%

$38.24 less in China

Updated Oct 13, 2026 · Reference indexes, not supplier quotations

Calculation evidence & references
US index evidence · regional-median-v11 observations · 1 eligible suppliers · calculated Oct 13, 2026
China index evidence · regional-median-v19 observations · 9 eligible suppliers · calculated Oct 13, 2026
Public market reference channelsAlibaba.com ↗Amazon Business ↗How calculated ↗

Platform links identify public market channels. Exact supplier identities remain private; each displayed value is a GrapeCat Chem regional index, not a platform quote.

12-Month Regional Index History

Confidence: LIMITEDFreshness: Oct 13, 2026

USD-normalized · 1 g comparison basis

Compressed price scale · omitted empty range: 21.9–59.4

View exact monthly observations →
Latest six exact monthly observations
RegionOct26
US59.8
CN21.5
Exact monthly observations (1)
Exact monthly observations
USChina
59.7600000021.52000000

Published 1y index history · regional-median-v1 · basis 1 g · Methodology ↗

Structure, sources & questions
2D molecular structure of Copper(I) diphenylphosphinate, CAS 1011257-42-3

PubChem CID pubchem:25023217 1

Safety & regulatory sourcesReference sources

Review source records and requirements before use.

Available Specifications & Package Bases

Available Specifications & Package Bases

Normalized specification and package facts from eligible technical documents; source-specific supplier promotion remains private. Each package is an independent research basis. How calculated ↗

90%
1 g
Current basis
US
$59.76
China
$21.52
Gap
64%
$38.24 less in China

regional-median-v1 · 1/9 US/CN observations · calculated Oct 13, 2026

90%
5 g
View prices
US
$167.34
China
$90.54
Gap
45.9%
$76.80 less in China

regional-median-v1 · 1/5 US/CN observations · calculated Oct 13, 2026

90%
25 g
View prices
US
$573.73
China
$322.58
Gap
43.8%
$251.15 less in China

regional-median-v1 · 1/3 US/CN observations · calculated Oct 13, 2026

90%
100 g
View prices
US
$1,721.20
China
$1,006.50
Gap
41.5%
$714.70 less in China

regional-median-v1 · 1/2 US/CN observations · calculated Oct 13, 2026

90%
250 mg
View prices
US
N/A
China
$10.30
Gap
N/A

regional-median-v1 · —/4 US/CN observations · calculated Oct 13, 2026

Reference Data & Physical Properties

Chemical Reference & Physical Properties

Secondary scientific reference values; unavailable fields remain unfilled.

External identifiers

InChIKey
SVIKVYNAINDOJS-UHFFFAOYSA-M
PubChem CID
250232171
MDL Number
—
SMILES
C1=CC=C(C=C1)P(=O)(C2=CC=CC=C2)[O-].[Cu+]

Applicable physical properties

Only source-provided properties applicable to this published basis are shown. Storage and container requirements remain in Safety Summary.

No applicable, independently verified physical-property values are published for this basis.
Sources (1)[1] PubChem CID pubchem:25023217Verified 2026-10-13

Identifiers and synonyms

Synonyms
Copper(1+) diphenylphosphinate, Phosphinic acid, P,P-diphenyl-, copper(1+) salt (1:1)
CAS
1011257-42-3
Formula
C12H10CuO2P
Molecular weight
280.73 g/mol
InChIKey
SVIKVYNAINDOJS-UHFFFAOYSA-M
PubChem CID
25023217

Questions about Copper(I) diphenylphosphinate

What is the CAS number of Copper(I) diphenylphosphinate?

The CAS number of Copper(I) diphenylphosphinate is 1011257-42-3. Its molecular formula is C12H10CuO2P and its molecular weight is 280.73 g/mol.

What is the price index of Copper(I) diphenylphosphinate?

As of October 2026, the China regional price index for Copper(I) diphenylphosphinate (CAS 1011257-42-3) at 90% purity is $21.52 per 1 g, the median of 9 sources. The US regional index for the same specification and package is $59.76, from 1 source.

Why is the US index higher than the China index for Copper(I) diphenylphosphinate?

For 90%, 1 g, the China index is 64% lower in October 2026. The two indexes are built from different sets of sources in each region; the methodology page explains how listings are assigned to a region and converted to USD. The gap describes observed list prices, not landed cost: duties, freight and handling are not included.

What purities and package sizes are covered?

GrapeCat Chem publishes 5 comparison bases for Copper(I) diphenylphosphinate; the table on this page lists the index for each purity and package size.

Is this a quotation?

No. GrapeCat Chem does not sell chemicals. The values are research indexes calculated from observed list prices and are not offers, quotations or real-time prices.

Classification

Scientific Sourcing Taxonomy

CatalystsTransition Metal Catalysts
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Research index data only. Regional indexes are not executable quotations. Safety, physical-property, and regulatory references must be independently confirmed.

Data Methodology