Copper hydroxide - CP, ≥94% , CAS No.20427-59-2

CAS: 20427-59-2 Cat. No.: C105403 Formula: Cu(OH)2 Molecular Weight: 97.56 EC Number: 243-815-9
AVAILABLE TO ORDER
GRADE & PURITY CP ? Chemically Pure grade — moderate purity above technical grade but below analytical. Use for general lab reactions where ultra-low impurities aren't critical. ≥94%
Synonyms
Copper dihydroxide | Hydrated cupric oxide | Cupric hydroxide
Storage
Room temperature,Argon charged
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
100g
C105403-100g
6 In stock
—
$13.90
500g
C105403-500g
4 In stock
—
$41.90
Enter a quantity for the sizes you want to add.
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Why this grade

CP, ≥94% CP for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

Cited in 32 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

The orthorhombic nature of copper hydroxide crystals was determined by X ray diffraction. Copper hydroxide can act as a heterogeneous catalyst in the selective oxidative cross coupling of terminal alkynes to yield their corresponding ynamides.

Specifications

Synonyms
Copper dihydroxide | Hydrated cupric oxide | Cupric hydroxide
Specifications & Purity
CP, ≥94%
Storage
Room temperature,Argon charged
Shipped In
Normal
Grade
CP
Purity
≥94%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504753411
Canonical Smiles
O.O.[Cu]
IUPAC Name
copper;dihydrate
InChIKey
AEJIMXVJZFYIHN-UHFFFAOYSA-N
INCHI
1S/Cu.2H2O/h;2*1H2
Isomeric SMILES
O.O.[Cu]
WGK Germany
3
RTECS
GL7600000
Molecular Weight
97.56
Reaxy-Rn
31846435
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=31846435&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

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassTransition metal organides
SubclassTransition metal oxides
Intermediate Tree Nodes Not available
Direct ParentTransition metal oxides
Alternative Parents Inorganic salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Transition metal oxide - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as transition metal oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is a transition metal.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

18 results found

Lot NumberCertificate TypeDateItem
F2611174Certificate of AnalysisJun 18, 2026 C105403
F2524099Certificate of AnalysisJun 09, 2025 C105403
F2524158Certificate of AnalysisJun 09, 2025 C105403
E2520115Certificate of AnalysisMay 29, 2025 C105403
C2201453Certificate of AnalysisMar 04, 2025 C105403
A2506282Certificate of AnalysisJan 11, 2025 C105403
B2328805Certificate of AnalysisSep 19, 2024 C105403
B2328811Certificate of AnalysisSep 19, 2024 C105403
C2201454Certificate of AnalysisJun 12, 2024 C105403
B2109137Certificate of AnalysisApr 03, 2024 C105403
F2223189Certificate of AnalysisJan 09, 2024 C105403
F2223263Certificate of AnalysisJan 09, 2024 C105403
K2102171Certificate of AnalysisMay 10, 2023 C105403
K2102170Certificate of AnalysisMay 10, 2023 C105403
C2201430Certificate of AnalysisDec 12, 2022 C105403
K2102227Certificate of AnalysisAug 12, 2022 C105403
F2223266Certificate of AnalysisJun 05, 2022 C105403
B2109135Certificate of AnalysisJan 18, 2022 C105403
Chemical and Physical Properties
SolubilitySlightly soluble in waterSoluble in acids, ammonium hydroxide, dilute hydrochloric acid, concentrated alkali and potassium cyanide. Insoluble in water, ethanol, and acetone.
SensitivityHygroscopic;Moisture sensitive;air sensitive;heat sensitive
Melt Point(°C)229 °C
Molecular Weight99.580 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass98.9507 Da
Monoisotopic Mass98.9507 Da
Topological Polar Surface Area2.000 Ų
Heavy Atom Count3
Formal Charge0
Complexity2.800
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count3
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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