Phosphoric acid - ≥99%, crystalline , CAS No.7664-38-2

CAS: 7664-38-2 Cat. No.: P112028 Formula: H3PO4 Molecular Weight: 98.00 Beilstein Registry Number: 1921286 EC Number: 231-633-2
AVAILABLE TO ORDER
GRADE & PURITY ≥99% crystalline
Synonyms
o-Phosphoric acid | ORTHOPHOSPHORIC ACID
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
★
Size
Germany (EU)
USA*
Price
Qty
100g
P112028-100g
—
3 In stock
€60.65
500g
P112028-500g
—
3 In stock
€208.17
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥99%, crystalline for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Desiccated Ships FedEx DG Service 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 1585 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
o-Phosphoric acid | ORTHOPHOSPHORIC ACID
Specifications & Purity
≥99%, crystalline
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
Purity
≥99%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/508815667
Canonical Smiles
OP(=O)(O)O
IUPAC Name
phosphoric acid
InChIKey
NBIIXXVUZAFLBC-UHFFFAOYSA-N
INCHI
1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
Isomeric SMILES
OP(=O)(O)O
WGK Germany
1
RTECS
TB6300000
UN Number
1805
Packing Group
III
Molecular Weight
98.00
Beilstein
1921286
Reaxy-Rn
1921286
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1921286&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
SuperclassHomogeneous non-metal compounds
ClassNon-metal oxoanionic compounds
SubclassNon-metal phosphates
Intermediate Tree Nodes Not available
Direct ParentNon-metal phosphates
Alternative Parents Inorganic oxides  
Molecular FrameworkNot available
Substituents Non-metal phosphate - Inorganic oxide
DescriptionThis compound belongs to the class of inorganic compounds known as non-metal phosphates. These are inorganic non-metallic compounds containing a phosphate as its largest oxoanion.
External Descriptors phosphoric acids
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
THRB Tclin Thyroid hormone receptor beta-1 (7926 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SRC Tclin Tyrosine-protein kinase SRC (10310 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OTC Tchem Ornithine carbamoyltransferase (24 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Lymphoblastoid cell (5959 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC16A1 Tchem Monocarboxylate transporter 1 (146 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
panE Ketopantoate reductase (28 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Fe(3+)-Zn(2+) purple acid phosphatase (65 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
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.

46 results found

Lot NumberCertificate TypeDateItem
I2621742Certificate of AnalysisJul 15, 2026 P112028
I2621743Certificate of AnalysisJul 14, 2026 P112028
F2611586Certificate of AnalysisMay 21, 2026 P112028
F2611588Certificate of AnalysisMay 09, 2026 P112028
F2611587Certificate of AnalysisMay 09, 2026 P112028
E2609547Certificate of AnalysisApr 28, 2026 P112028
E2609549Certificate of AnalysisApr 28, 2026 P112028
D2629157Certificate of AnalysisApr 25, 2026 P112028
D2629158Certificate of AnalysisApr 25, 2026 P112028
D2629159Certificate of AnalysisApr 25, 2026 P112028
I2523545Certificate of AnalysisSep 18, 2025 P112028
I2523546Certificate of AnalysisSep 18, 2025 P112028
I2523547Certificate of AnalysisSep 18, 2025 P112028
C2514438Certificate of AnalysisFeb 25, 2025 P112028
C2514436Certificate of AnalysisFeb 25, 2025 P112028
C2514437Certificate of AnalysisFeb 25, 2025 P112028
I2429218Certificate of AnalysisSep 23, 2024 P112028
I2429219Certificate of AnalysisSep 23, 2024 P112028
H2428497Certificate of AnalysisAug 23, 2024 P112028
H2428496Certificate of AnalysisAug 23, 2024 P112028
F2412344Certificate of AnalysisJun 01, 2024 P112028
F2412343Certificate of AnalysisJun 01, 2024 P112028
E2422506Certificate of AnalysisMay 09, 2024 P112028
E2422520Certificate of AnalysisMay 09, 2024 P112028
D2417439Certificate of AnalysisApr 09, 2024 P112028
D2417423Certificate of AnalysisApr 09, 2024 P112028
B2401239Certificate of AnalysisJan 18, 2024 P112028
B2401241Certificate of AnalysisJan 18, 2024 P112028
B2401240Certificate of AnalysisJan 18, 2024 P112028
B2401246Certificate of AnalysisJan 18, 2024 P112028
B2401247Certificate of AnalysisJan 18, 2024 P112028
B2401245Certificate of AnalysisJan 17, 2024 P112028
K2229933Certificate of AnalysisOct 27, 2022 P112028
K2229934Certificate of AnalysisOct 27, 2022 P112028
L2304023Certificate of AnalysisJun 17, 2022 P112028
F2224218Certificate of AnalysisJun 17, 2022 P112028
F2224217Certificate of AnalysisJun 17, 2022 P112028
F2224216Certificate of AnalysisJun 17, 2022 P112028
F2224215Certificate of AnalysisJun 17, 2022 P112028
J2218334Certificate of AnalysisJun 17, 2022 P112028
F2224214Certificate of AnalysisJun 17, 2022 P112028
F2224213Certificate of AnalysisJun 17, 2022 P112028
A2220523Certificate of AnalysisDec 30, 2021 P112028
A2220512Certificate of AnalysisDec 30, 2021 P112028
A2220434Certificate of AnalysisDec 28, 2021 P112028
A2220511Certificate of AnalysisDec 28, 2021 P112028
Chemical and Physical Properties
SensitivityMoisture sensitive.
Boil Point(°C)158°C
Melt Point(°C)42.35°C
Molecular Weight97.995 g/mol
XLogP3-2.100
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass97.9769 Da
Monoisotopic Mass97.9769 Da
Topological Polar Surface Area77.800 Ų
Heavy Atom Count5
Formal Charge0
Complexity49.800
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 Count1
Documents & Articles
Common Types of Buffer Solutions
Pepsin——Structural Features, Enzymatic Properties, and Experimental Application Guide
Molecular Mechanisms and Multidomain Applications of Inorganic Pyrophosphatase
Paeoniflorin: Structural Features, Physicochemical Properties, and Key Considerations for Analytical Quality Control
Laccase: Technical Characteristics, Optimization Strategies, and Industrial Application Progress
Recent Advances in Methods for Measuring Plant Protein-Related Indices and Application-Oriented Selection
How to Choose Inorganic Acids: Making Descaling, Derusting, and Surface Treatment Controllable via pH and the “Fate of the Salts Formed” (with Tables 1–3)
Experimental Judgment for Differential Deprotection of Double Boc and Related N-Boc Systems: Substrate Type, Site-Response Differences, and Initial Condition Selection
Selection Strategy for PBS, TBS, PBST, and TBST Washing Systems in IHC
Fluorocarbon Resin Coating Formulation Design: Resin Selection, Supporting Systems, and Key Application Control Points
Diagnosis of Coating Performance Issues and Selection of Resin Modification Routes
Resin Polarity in Coating Formulations: From Molecular Structure to Dissolution, Compatibility, Interfacial Interactions, and Formulation Design
Differences, Functions, and Selection Guidelines for Sodium Hydroxide Flakes, Granules, Liquid Caustic Soda, and Caustic Soda in Household and Personal Care Product Manufacturing: The Functional and Application Logic of Sodium Hydroxide
How to Select Thickeners for Strongly Acidic Cleaning Systems: Comparison of Thickening Mechanisms and Application Considerations for Fatty Amine Ethoxylates
More Than a pH Adjuster: Mechanisms, Selection Logic, and Alternative Acid Source Analysis of Citric Acid in Home-Care Cleaning
Sodium Metasilicate in Cleaning Applications: Hydration-Form Differences, Mechanisms of Action, and Selection Logic
What Is an Etchant? Etching Mechanisms for Revealing Metallographic Microstructures, Selection Methods, and Applications of Related Wet-Etching Reagents
Why Do Rust Spots Appear on Neutral Wall Putty? Iron Sources, Moisture Migration, Oxidative Color Development, and Prevention Measures
1,8-Naphthyridine-Based Aldose Reductase Inhibitors: Scaffold Construction, In Vitro Inhibitory Activity, and Directions for Structural Optimization
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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