(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane - ≥98% , CAS No.32305-98-9

Name: (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane - ≥98% , CAS No.32305-98-9
Brand: Aladdin Scientific
SKU: O115632
Availability: InStock

CAS: 32305-98-9 Cat. No.: O115632 Molecular Weight: 498.53 Beilstein Registry Number: 1441050 EC Number: 250-984-2

COA

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(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane - ≥98% CAS No(32305-98-9) by Aladdin Scientific

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AVAILABLE TO ORDER

GRADE & PURITY ≥98%

Synonyms

Storage

Store at 2-8°C,Argon charged

Shipped In

Wet ice

Overview Specifications Names and Identifiers Documentation Advanced Data Taxonomic Classification 3D Structure Associated Targets(Human) Mechanisms of Action Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Documents & Articles Solution Calculators Reviews

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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane is a C2 chelating diphosphine ligand for transition metal complexes during asymmetric catalysis.

Specifications

Synonyms

Specifications & Purity

≥98%

Storage

Store at 2-8°C, Argon charged

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥98%

Names and Identifiers

Canonical Smiles	CC1(OC(C(O1)CP(C2=CC=CC=C2)C3=CC=CC=C3)CP(C4=CC=CC=C4)C5=CC=CC=C5)C
IUPAC Name	[(4R,5R)-5-(diphenylphosphanylmethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl-diphenylphosphane
InChIKey	VCHDBLPQYJAQSQ-KYJUHHDHSA-N
INCHI	1S/C31H32O2P2/c1-31(2)32-29(23-34(25-15-7-3-8-16-25)26-17-9-4-10-18-26)30(33-31)24-35(27-19-11-5-12-20-27)28-21-13-6-14-22-28/h3-22,29-30H,23-24H2,1-2H3/t29-,30-/m0/s1
Isomeric SMILES	CC1(O[C@H]([C@@H](O1)CP(C2=CC=CC=C2)C3=CC=CC=C3)CP(C4=CC=CC=C4)C5=CC=CC=C5)C
WGK Germany	3
Molecular Weight	498.53
Beilstein	1441050
Reaxy-Rn	1630279
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1630279&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organic oxygen compounds
  - Class Organooxygen compounds
    - Subclass Ethers
      - Level5 Acetals
        Level6 Ketals

Kingdom	Organic compounds
Superclass	Organic oxygen compounds
Class	Organooxygen compounds
Subclass	Ethers
Intermediate Tree Nodes	Acetals
Direct Parent	Ketals
Alternative Parents	Benzene and substituted derivatives 1,3-dioxolanes Organic phosphines and derivatives Oxacyclic compounds Organopnictogen compounds Hydrocarbon derivatives
Molecular Framework	Aromatic heteromonocyclic compounds
Substituents	Ketal - Benzenoid - Monocyclic benzene moiety - Meta-dioxolane - Phosphine - Oxacycle - Organoheterocyclic compound - Organopnictogen compound - Hydrocarbon derivative - Organophosphorus compound - Aromatic heteromonocyclic compound
Description	This compound belongs to the class of organic compounds known as ketals. These are acetals derived from ketones by replacement of the oxo group by two hydrocarbyloxy groups R2C(OR)2 ( R not Hydrogen ). This term, once abandoned, has been reinstated as a subclass of acetals.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Associated Targets(Human)

A498 (42825 Activities)

Lot Number	Certificate Type	Date	Item
J2521173	Certificate of Analysis	Nov 03, 2025	O115632
I2102362	Certificate of Analysis	Jun 16, 2023	O115632
I2102365	Certificate of Analysis	Jun 16, 2023	O115632
L2403149	Certificate of Analysis	Jun 16, 2023	O115632
B1506077	Certificate of Analysis	Oct 15, 2022	O115632
I2017241	Certificate of Analysis	Jul 18, 2022	O115632
B2321409	Certificate of Analysis	Sep 08, 2021	O115632

Sensitivity	Air sensitive.
Melt Point(°C)	88-90°C
Molecular Weight	498.500 g/mol
XLogP3	6.200
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	8
Exact Mass	498.188 Da
Monoisotopic Mass	498.188 Da
Topological Polar Surface Area	18.500 Å²
Heavy Atom Count	35
Formal Charge	0
Complexity	527.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	2
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1