Boric acid - Ph.Eur., puriss. p.a., ACS, ≥99.8%, buffer substance , CAS No.10043-35-3

CAS: 10043-35-3 Cat. No.: B431191 Formula: H3BO3 Molecular Weight: 61.84 EC Number: 233-139-2
AVAILABLE TO ORDER
GRADE & PURITY Ph.Eur. ? European Pharmacopoeia grade — conforms to Ph.Eur. monographs across EU member states. Use for pharmaceutical work needing European compendial compliance. puriss. p.a. ? Puriss. pro analysi — very high purity suitable for analysis, meeting recognized analytical specs. Use for analytical work demanding certified high purity. ACS ? ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity. ≥99.8% buffer substance
Synonyms
BORIC ACID (EP IMPURITY) | Boric acid (h(sub 3)bo(sub 3)) | INS-284 | [B(OH)3] | Boric acid, NF/USP grade | MFCD00011337 | Acidum boricum (Salt/Mix) | Borsaeure | DTXSID1020194 | Kill-off | NSC 81726 | BORIC ACID [II] | Boron hydroxide | Bluboro (Salt/Mix
Storage
Room temperature
Shipped In
FedEx DG Service
★
Size
USA
Germany (EU)*
Price
Qty
100g
B431191-100g
Made to order · 8–12 wks
$68.90
500g
B431191-500g
2 In stock
1 In stock
$261.90
6×500g
B431191-6×500g
Made to order · 8–12 wks
$763.90
Enter a quantity for the sizes you want to add.
🧪
Why this grade

Ph.Eur., puriss. p.a., ACS, ≥99.8%, buffer substance ACS,Ph.Eur.,puriss. p.a. for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature 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 1201 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Boric acid is a very weak acid, having pH in the range of 3.6-4.0. Coulometric method for the determination of boric acid has been reported.

Specifications

Synonyms
BORIC ACID (EP IMPURITY) | Boric acid (h(sub 3)bo(sub 3)) | INS-284 | [B(OH)3] | Boric acid, NF/USP grade | MFCD00011337 | Acidum boricum (Salt/Mix) | Borsaeure | DTXSID1020194 | Kill-off | NSC 81726 | BORIC ACID [II] | Boron hydroxide | Bluboro (Salt/Mix
Specifications & Purity
Ph.Eur., puriss. p.a., ACS, ≥99.8%, buffer substance
Storage
Room temperature
Shipped In
FedEx DG Service
Grade
ACS, Ph.Eur., puriss. p.a.
Purity
≥99.8%
Names and Identifiers
Pubchem Sid528774175
Canonical SmilesB(O)(O)O
IUPAC Nameboric acid
InChIKeyKGBXLFKZBHKPEV-UHFFFAOYSA-N
INCHI1S/BH3O3/c2-1(3)4/h2-4H
Isomeric SMILES B(O)(O)O
WGK Germany 1
Molecular Weight 61.84
Reaxy-Rn 3600274
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3600274&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
ClassMiscellaneous mixed metal/non-metals
SubclassMiscellaneous metallic oxoanionic compounds
Intermediate Tree Nodes Not available
Direct ParentMiscellaneous borates
Alternative Parents Metalloid salts  Inorganic salts  
Molecular FrameworkNot available
Substituents Borate - Inorganic salt - Inorganic metalloid salt
DescriptionThis compound belongs to the class of inorganic compounds known as miscellaneous borates. These are inorganic compounds in which the largest metallic oxoanion is borate, to which either no atom or a non metal atom is bonded.
External Descriptors an anion
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
ESR1 Tclin Estrogen receptor alpha (17718 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
VDR Tclin Vitamin D receptor (26531 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TSHR Tclin Thyroid stimulating hormone receptor (29986 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TDP1 Tchem Tyrosyl-DNA phosphodiesterase 1 (345557 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
LMNA Tbio Prelamin-A/C (36751 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TRPV6 Tchem Transient receptor potential cation channel subfamily V member 6 (136 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Hyaloperonospora parasitica (23 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.

3 results found

Lot NumberCertificate TypeDateItem
H2401049Certificate of AnalysisAug 14, 2024 B431191
D2620126Certificate of AnalysisAug 06, 2024 B431191
H2401047Certificate of AnalysisAug 06, 2024 B431191
Chemical and Physical Properties
Solubilitywater: soluble
Boil Point(°C)300°C
Melt Point(°C)169°C
Molecular Weight61.840 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass62.0175 Da
Monoisotopic Mass62.0175 Da
Topological Polar Surface Area60.700 Ų
Heavy Atom Count4
Formal Charge0
Complexity8.000
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
Documents & Articles
Aladdin@Guidelines for the formulation of commonly used buffers for biological experiments
Puriss. p.a.: what it means, when to use it, and how it compares
Common Types of Buffer Solutions
Why Is EDTA So Widely Used?
11 Common Methods for Protein Concentration Determination
Poly(vinyl alcohol) (PVA): From Basics to Selection Key Parameters, Freeze–Thaw vs. Chemical Crosslinking Hydrogel Routes, and an Aladdin Product List
How to Choose a Hydrogen Evolution (HER) Catalyst: Kinetic Barriers in Water Electrolysis, AWE/PEM/AEM Pathways, and a Materials-Family Roadmap (with a Product Map)
Installing a Redox Switch on Biomolecules: Principles, Conjugation Essentials, and an Application Guide for ATTO MB2 NHS ester
A Review of Ten Commonly Used Techniques for Detection, Quantification, and Interaction Analysis in Nucleic Acid Research
Why Acridine Can Turn “Trace Molecules” into a Measurable Light Signal: A Mechanistic, Selection, and Troubleshooting Guide to Acridinium Ester Chemiluminescent Immunoassays (Including Product Tables 1–4)
Choosing Boron Sources to Make Reactions Robust: How Boronic Acids, Boronate Esters, BF₃K Salts, and MIDA Improve Suzuki–Miyaura Start-Up and Scale-Up Reproducibility (with Product Tables 1–5)
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)
Agarose Precast Gels: Composition, Advantages, and Application Workflows for Standardized Nucleic Acid Electrophoresis Matrices
EMSA PAGE Precast Gels: Principle Alignment, Performance Advantages, and Application Scenarios
Glutaraldehyde-mediated Microbial Inactivation: Chemical Mechanisms, Determinants, and Key Validation Considerations
The Methodological Value of DSC: Building NHS-Type Activated Intermediates and Deciding When to Use Them
Technical Comparison and Method Selection for Hydroxyproline Determination
From Functional Groups to Experimental Decision-Making: Protein Crosslinker Selection and Experimental Essentials
What Are the Differences Between Polyvinyl Alcohol 1788, 2488, and 2699? Understanding Workability, Bonding Strength, and Relative Water Resistance from the Perspective of Degree of Polymerization and Degree of Hydrolysis
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.