Crisaborole Acid Impurity

Name: Crisaborole Acid Impurity
Brand: Vaqora Chemicals
SKU: VQ-022263

About Crisaborole Acid Impurity

Crisaborole Acid Impurity is a metabolite or degradation product of Crisaborole carrying the CAS registry number 906673-43-6. Its molecular formula is C14H11BO5 and its molecular weight is 270.05 g/mol. The IUPAC name is 4-[(1-hydroxy-3H-2,1-benzoxaborol-5-yl)oxy]benzoic acid. Common synonyms include Carisoborole Acid Impurity and Crisaborole Impurity B.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

Analytical teams use this compound to identify metabolites and degradants of Crisaborole, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Crisaborole Acid Impurity is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Crisaborole

View every impurity, metabolite and intermediate we list for Crisaborole.

Crisaborole impurities

Specifications & identifiers

Chemical identifiers
Product name	Crisaborole Acid Impurity
Catalogue No.	VQ-022263
CAS Number	906673-43-6
IUPAC name	4-[(1-hydroxy-3H-2,1-benzoxaborol-5-yl)oxy]benzoic acid
Molecular formula	C₁₄H₁₁BO₅
Molecular weight	270.05 g/mol
Exact mass	270.07
Grade	Reference Standard
HSN code	38229090
InChIKey	BYVNFPQXJOQGEM-UHFFFAOYSA-N
SMILES	B1(C2=C(CO1)C=C(C=C2)OC3=CC=C(C=C3)C(=O)O)O
PubChem CID	25010450

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 5
TPSA	76 Å²
Synonyms	4-[(1,3-Dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy]benzoic Acid, Carisoborole Acid Impurity, Crisaborole Impurity B, Crisaborole Impurity 32, 4-((1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)oxy)benzoic acid, Crisaborole Impurity 52, 4-(1-hydroxy-1,3-dihydro-benzo[c][1,2]oxaborol-5-yloxy)-benzoic acid, Crisaborole Impurity 16, 4-((1,3-Dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy)benzoic acid, Benzoic acid, 4-((1,3-dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy)-, Benzoic acid, 4-[(1,3-dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy]-

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Crisaborole Acid Impurity?

The CAS Registry Number of Crisaborole Acid Impurity is 906673-43-6. It is also known as 4-[(1,3-Dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy]benzoic Acid, Carisoborole Acid Impurity, Crisaborole Impurity B.

What is the molecular formula and molecular weight of Crisaborole Acid Impurity?

Crisaborole Acid Impurity has the molecular formula C14H11BO5 and a molecular weight of 270.05 g/mol. Its IUPAC name is 4-[(1-hydroxy-3H-2,1-benzoxaborol-5-yl)oxy]benzoic acid.

What is Crisaborole Acid Impurity used for?

Crisaborole Acid Impurity is supplied as a characterised reference material related to Crisaborole. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Crisaborole Acid Impurity can I order?

We supply Crisaborole Acid Impurity in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Crisaborole Acid Impurity?

Yes. Every lot of Crisaborole Acid Impurity is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Crisaborole Acid Impurity be shipped internationally?

Yes. We export Crisaborole Acid Impurity worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.