rac-BINAP

CAS 98327-87-8C44H32P21622.7 g/mol1

As of October 2026, the China regional price index for rac-BINAP (CAS 98327-87-8) at 98% purity is $8.82 per 5 g, the median of 13 sources. The US regional index for the same specification and package is $33.47, from 1 source. These are research reference indexes in USD, not supplier quotations. rac-BINAP is also known as (1,1'-Binaphthalene)-2,2'-diylbis(diphenylphosphine), 2,2'-Bis(diphenylphosphino)-1,1'-binaphthalene, 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, BINAP.

Review safety sources. Verify before use.

Market Intelligence Snapshot

Market Intelligence Snapshot

98% · 5 g · Regional reference indexes

US Regional Index
$33.47

Per 5 g basis

China Regional Index
$8.82

Per 5 g basis

Regional Gap
73.6%

$24.65 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-v114 observations · 13 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 · 5 g comparison basis

Compressed price scale · omitted empty range: 9.1–33.2

View exact monthly observations →
Latest six exact monthly observations
RegionOct26
US33.5
CN8.8
Exact monthly observations (1)
Exact monthly observations
USChina
33.470000008.82000000

Published 1y index history · regional-median-v1 · basis 5 g · Methodology ↗

Structure, sources & questions
2D molecular structure of rac-BINAP, CAS 98327-87-8

PubChem CID pubchem:634876 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 ↗

98%
5 g
Current basis
US
$33.47
China
$8.82
Gap
73.6%
$24.65 less in China

regional-median-v1 · 1/14 US/CN observations · calculated Oct 13, 2026

98%
1 g
View prices
US
N/A
China
$4.48
Gap
N/A

regional-median-v1 · —/14 US/CN observations · calculated Oct 13, 2026

98%
10 g
View prices
US
N/A
China
$15.69
Gap
N/A

regional-median-v1 · —/7 US/CN observations · calculated Oct 13, 2026

98%
25 g
View prices
US
$95.62
China
$38.40
Gap
59.8%
$57.22 less in China

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

98%
50 g
View prices
US
N/A
China
$62.46
Gap
N/A

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

98%
100 g
View prices
US
$346.63
China
$148.36
Gap
57.2%
$198.27 less in China

regional-median-v1 · 1/11 US/CN observations · calculated Oct 13, 2026

98%
250 g
View prices
US
N/A
China
$296.21
Gap
N/A

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

98%
500 g
View prices
US
$1,721.20
China
$672.35
Gap
60.9%
$1,048.85 less in China

regional-median-v1 · 1/6 US/CN observations · calculated Oct 13, 2026

98%
1 kg
View prices
US
N/A
China
$1,136.64
Gap
N/A

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

97%
1 g
View prices
US
$23.91
China
$4.93
Gap
79.4%
$18.98 less in China

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

97%
5 g
View prices
US
N/A
China
$121.10
Gap
N/A

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

97%
25 g
View prices
US
N/A
China
$297.11
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
MUALRAIOVNYAIW-UHFFFAOYSA-N
PubChem CID
6348761
MDL Number
—
SMILES
C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=C(C4=CC=CC=C4C=C3)C5=C(C=CC6=CC=CC=C65)P(C7=CC=CC=C7)C8=CC=CC=C8

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:634876Verified 2026-10-13

Identifiers and synonyms

Synonyms
(1,1'-Binaphthalene)-2,2'-diylbis(diphenylphosphine), 2,2'-Bis(diphenylphosphino)-1,1'-binaphthalene, 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, BINAP
CAS
98327-87-8
Formula
C44H32P2
Molecular weight
622.7 g/mol
InChIKey
MUALRAIOVNYAIW-UHFFFAOYSA-N
PubChem CID
634876

Questions about rac-BINAP

What is the CAS number of rac-BINAP?

The CAS number of rac-BINAP is 98327-87-8. Its molecular formula is C44H32P2 and its molecular weight is 622.7 g/mol.

What is the price index of rac-BINAP?

As of October 2026, the China regional price index for rac-BINAP (CAS 98327-87-8) at 98% purity is $8.82 per 5 g, the median of 13 sources. The US regional index for the same specification and package is $33.47, from 1 source.

Why is the US index higher than the China index for rac-BINAP?

For 98%, 5 g, the China index is 73.6% 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 12 comparison bases for rac-BINAP; 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

LigandsPhosphine Ligands
Related Chemical Records

No related published Chemical records are assigned.

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

Data Methodology