Research chemical

Boric Acid

CAS Number: 10043-35-3

Product details

Identity & specification

Molecular formula: BH3O3
Molecular weight: 61.84 g/mol
Product type: Research-use catalog compound
Documentation: COA / SDS available by request

For laboratory research and professional procurement workflows.

Technical identifiers

Show PubChem, InChIKey, IUPAC, and SMILES

PubChem CID

7628

Exact Mass

62.017524

InChIKey

KGBXLFKZBHKPEV-UHFFFAOYSA-N

SMILES String

B(O)(O)O

Physical Properties

Appearance

Boric acid is an odorless white solid. Melting point 171 °C. Sinks and mixes with water. (USCG, 1999)

Melting Point

170.9–171.11 °C

Boiling Point

300.0 °C

pKa

5.8

Show more physical data

Refractive Index

1.337

Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.

Computed Structure Descriptors

Show calculated structure fields

Heavy atom count

H-bond acceptors

H-bond donors

Rotatable bonds

Ring count

Aromatic rings

Topological polar surface area

60.69 Å²

Computed LogP

-2.05

Fragment-like structure rule

Lead-like structure rule

Drug-like structure rule

Structure family

boronic acid or boronate

Precious metal motif

Transition metal motif

Phosphine ligand motif

N-heterocycle motif

Boronic acid motif

Yes

Computed structure descriptors generated from molecular structure. These are not experimental physical property values, supplier specifications, SDS data, or bioactivity claims.

Catalog Facts

Structural features

Boric Acid (CAS 10043-35-3) is an English MolGraph catalog reference, molecular formula BH3O3 and molecular weight 61. 84 g/mol.

Sourcing context

Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.

Research use context

Use this page to review identity data, application tags, sourcing readiness, and RFQ context for bioactivity screening workflows, boronic acid and ester chemistry, research chemical sourcing.

Documentation needs

Request supplier-issued SDS/COA before handling, storage, shipment, or procurement decisions. Public page content is for research catalog reference and does not replace supplier-issued safety documentation.

Applications & Classification

Bioactivity Screening Boronic Acids and Esters Research Chemical SourcingResearch intermediateCustom synthesis building blockCustom synthesis and catalog availability reviewCOA, SDS, pricing, and fulfillment workflow

Biological target reference

ChEMBL reports experimental activity evidence for: Thyrotropin receptor (Homo sapiens) — 2 assays. These records describe research assays and do not establish therapeutic efficacy or clinical use.

Thyrotropin receptor

Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents · best pChEMBL 5.8

Experimental evidence source: ChEMBL

Safety & Handling

Safety and handling reference content is available through documentation requests.

For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.

Preliminary Safety Reference

For supplier-issued SDS or COA, submit a documentation request.

Safety Reference / SDS Request

Synonyms & references

Names & Synonyms

Orthoboric acidBoracic acidBorofaxBoric acid (H3BO3)Boron hydroxide

Show all synonyms

Boron trihydroxideBasilit BThree Elephant

External Identifiers

EC NUMBER: 233-139-2EC NUMBER: 234-343-4DSSTOX SUBSTANCE ID: DTXSID1020194CHEMBL ID: CHEMBL42403CHEBI ID: CHEBI:33118UNII: R57ZHV85D4BINDINGDB MONOMER ID: 39817DRUGBANK ID: DB11326HMDB ID: HMDB0035731ICSC NUMBER: 0991KEGG ID: C12486KEGG ID: D01089METABOLOMICS WORKBENCH ID: 67550NCI THESAURUS CODE: C47416PUBCHEM CID: 7628RXCUI: 1700WIKIDATA ID: Q187045WIKIDATA ID: Q72451064

Experimental Spectrum References

1D NMR Spectra ATR-IR Spectra — Forensic Spectral Research FTIR Spectra Raman Spectra

Literature & Patent References

DOI 10.1016/j.bmc.2025.118115Optimizing biofilm inhibitors: Balancing activity and toxicity in 2N-aminated 5-aryl-2-aminoimidazoles.PMID 40010036Optimizing biofilm inhibitors: Balancing activity and toxicity in 2N-aminated 5-aryl-2-aminoimidazoles.DOI 10.1016/j.bmc.2013.03.037Design, synthesis and pharmacological characterization of analogs of 2-aminoethyl diphenylborinate (2-APB), a known store-operated calcium channel blocker, for inhibition of TRPV6-mediated calcium transport.PMID 23602525Design, synthesis and pharmacological characterization of analogs of 2-aminoethyl diphenylborinate (2-APB), a known store-operated calcium channel blocker, for inhibition of TRPV6-mediated calcium transport.DOI 10.1016/j.cropro.2012.01.008Seed and leaf treatments with natural compounds to induce resistance against Peronospora parasitica in Brassica oleracea DOI 10.1039/C1MD00011JAn approach to enzyme inhibition employing reversible boronate ester formation DOI 10.1021/jm00087a019Synthesis and in vitro evaluation of boronated uridine and glucose derivatives for boron neutron capture therapy.PMID 1578491Synthesis and in vitro evaluation of boronated uridine and glucose derivatives for boron neutron capture therapy.

Regulatory Source References

EPA Safer ChemicalPubChem PUG-View · source_reported_not_registration_verdict

Source-reported regulatory references are context cues only; they are not registration verdicts, shipment clearance, or compliance advice.

Documentation & Compliance Facts

Compliance Facts

Signal word: Danger

Supplier SDS reference cue; confirm supplier documentation before use.

Hazard statements: H303, H315, H319, H335, H360, H370, H372, H402

Supplier SDS hazard code reference; confirm full text in supplier documentation.

Precautionary statements: P203, P260, P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P308+P316, P318, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501

Supplier SDS precautionary code reference; confirm full text in supplier documentation.

Shipment review: Required

Documentation available by request

Certificate of Analysis (COA): By request

Supplier Safety Data Sheet (SDS): By request

Purity and pack size confirmation: By request

Availability and lead time review: Confirmed by RFQ

Shipment documentation review: By request

For supplier-issued documentation by request, use the RFQ actions on this page.Review preliminary safety reference

What happens after RFQ

1We review the CAS identity, quantity, and documentation request.
2We check sourcing options, supplier availability, COA/SDS, purity, pack size, and lead time.
3We review destination and shipment documentation needs when applicable.
4We follow up with a quotation or clarification request.

Text Reference Cues

Additional text reference cues are not available for this catalog entry.

Non-public references are shown as text only and do not imply equivalence, availability, or shared use.

Catalog navigation

Linked by recorded structural or research relationships, not interchangeable products. Check the exact CAS, specification and availability on the linked product page.

Procurement questions

What are the key identifiers for Boric Acid (CAS 10043-35-3)?

Boric Acid is identified by CAS 10043-35-3, with molecular formula BH3O3, molecular weight 61.84, InChIKey KGBXLFKZBHKPEV-UHFFFAOYSA-N.

Does CAS 10043-35-3 have reported biological target evidence?

ChEMBL contains qualifying experimental assay evidence associated with Thyrotropin receptor. These records do not establish therapeutic efficacy or clinical use.

Can I request a COA for CAS 10043-35-3?

Yes. Submit an RFQ and specify COA requirements. Lot-specific COA depends on supplier confirmation.

Can I request supplier SDS for Boric Acid?

Yes. Supplier SDS can be requested through the RFQ workflow before handling, storage, shipment, or procurement decisions.

Is CAS 10043-35-3 available for quotation?

Availability, pack size, lead time, and pricing are confirmed through RFQ.

Can MolGraph support bulk sourcing or custom synthesis review?

Submit the CAS number, quantity, purity requirement, and destination country for sourcing review.