Water - Ultra pure , CAS No.7732-18-5

CAS: 7732-18-5 Cat. No.: W433884 Formula: H2O Molecular Weight: 18.02 EC Number: 231-791-2
AVAILABLE TO ORDER
GRADE & PURITY Ultra pure ? Ultra-pure grade with very low impurity content across the board. Use for trace analysis, electronics, or processes intolerant of contamination.
Synonyms
ECOLAB Eye Wash | SalinaaxEye Wash | Water, distilled | Deionized water | Ocufresh | Water, sterile purified | AeroWash Eyewash | agua | eau | NSC 147337 | Water,distilled | Water; Dihydrogen oxide | 1,3-epoxy- | CHEBI:15377 | Dorama-neo | Pur-wash | Wate
Storage
Room temperature
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
100ml
W433884-100ml
Made to order · 8–12 wks
$96.90
500ml
W433884-500ml
Made to order · 8–12 wks
$369.90
Enter a quantity for the sizes you want to add.
🧪
Why this grade

Ultra pure Ultra pure for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature 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 601 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
ECOLAB Eye Wash | SalinaaxEye Wash | Water, distilled | Deionized water | Ocufresh | Water, sterile purified | AeroWash Eyewash | agua | eau | NSC 147337 | Water,distilled | Water; Dihydrogen oxide | 1,3-epoxy- | CHEBI:15377 | Dorama-neo | Pur-wash | Wate
Specifications & Purity
Ultra pure
Storage
Room temperature
Shipped In
Normal
Grade
Ultra pure
Names and Identifiers
Canonical Smiles
[16OH2]
IUPAC Name
oxidane
InChIKey
XLYOFNOQVPJJNP-UHFFFAOYSA-N
INCHI
1S/H2O/h1H2
Isomeric SMILES
O
Molecular Weight
18.02

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
SuperclassHomogeneous non-metal compounds
ClassHomogeneous other non-metal compounds
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentHomogeneous other non-metal compounds
Alternative Parents Not available
Molecular FrameworkNot available
Substituents Homogeneous other non metal
DescriptionThis compound belongs to the class of inorganic compounds known as homogeneous other non-metal compounds. These are inorganic non-metallic compounds in which the largest atom belongs to the class of 'other non-metals'.
External Descriptors a small molecule
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
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.

17 results found

Lot NumberCertificate TypeDateItem
J2614140Certificate of AnalysisOct 14, 2026 W433884
G2624568Certificate of AnalysisAug 04, 2026 W433884
G2624569Certificate of AnalysisJul 31, 2026 W433884
A2604908Certificate of AnalysisJan 06, 2026 W433884
A2604909Certificate of AnalysisJan 06, 2026 W433884
E2519514Certificate of AnalysisMay 19, 2025 W433884
L2409615Certificate of AnalysisDec 09, 2024 W433884
L2409617Certificate of AnalysisDec 09, 2024 W433884
K2419152Certificate of AnalysisNov 19, 2024 W433884
K2419147Certificate of AnalysisNov 19, 2024 W433884
J2425903Certificate of AnalysisOct 28, 2024 W433884
I2414610Certificate of AnalysisSep 20, 2024 W433884
I2414608Certificate of AnalysisSep 19, 2024 W433884
H2415003Certificate of AnalysisAug 21, 2024 W433884
H2415010Certificate of AnalysisAug 21, 2024 W433884
G2416140Certificate of AnalysisJul 18, 2024 W433884
G2417005Certificate of AnalysisJul 18, 2024 W433884
Chemical and Physical Properties
Refractive Index1.34
Boil Point(°C)100 °C
Melt Point(°C)0 °C (lit.)
Molecular Weight18.015 g/mol
XLogP3-0.500
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass18.0106 Da
Monoisotopic Mass18.0106 Da
Topological Polar Surface Area1.000 Ų
Heavy Atom Count1
Formal Charge0
Complexity0.000
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 Count1
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Protein Tris-Acetate Electrophoresis System Standard Operating Procedure
Standard Operating Procedure (SOP) for the Protein Tris–Glycine Electrophoresis System
Protein Tris-Tricine Electrophoresis System Standard Operating Procedure
TRAP Staining: Principle and Procedure
Isolation, Culture, and Induced Differentiation of Bone Marrow Mesenchymal Stem Cells into Osteoclasts: Experimental Procedure
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TCFH–NMI Amidation in Highly Aqueous Media: Research Value, Methodological Understanding, and Experimental Insights
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Citations of This Product
Solution Calculators
Reviews

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