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API Impurities

4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile

Reference StandardAvailable on request

4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile (CAS 2141947-89-7) supplier Zemixal…

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4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile chemical structure
CAS number2141947-89-7
FormulaC20H20BNO4
Molar mass349.2 g/mol
Physical formSolid
HS code38229090
InChIKeyXTMDXEDJWWVAKJ-UHFFFAOYSA-N
IUPAC name4-[3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]benzonitrile

About 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile

4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile is supplied by Zemixal as a characterised reference material for Crisaborole analysis. Identity at a glance (Reference Standard): CAS 2141947-89-7, formula C20H20BNO4 and molar mass 349.2 g/mol. It is handled as a solid.

Typical applications

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Handling and storage

Hazard communication follows GHS (Warning: H302, H317 and H412). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Crisaborole

See every impurity, metabolite and related compound we list for this API.

Crisaborole standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile
Product name4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile
Catalogue numberZX-028746
CAS number2141947-89-7
IUPAC name4-[3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]benzonitrile
Molecular formulaC20H20BNO4
Molar mass349.2 g/mol
Exact mass349.1485
GradeReference Standard
Physical formSolid
H-bond donors / acceptors0 / 5
Topological polar surface area68.6 Ų
HS code38229090
InChIKeyXTMDXEDJWWVAKJ-UHFFFAOYSA-N
SMILESB1(OC(C(O1)(C)C)(C)C)C2=C(C=C(C=C2)OC3=CC=C(C=C3)C#N)C=O
PubChem CID88583310
SynonymsBenzonitrile, 4-(3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)-, Benzonitrile, 4-[3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-, [4-(4-Cyanophenoxy)-2-formylphenyl]boronic Acid Pinacol Ester

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H317May cause an allergic skin reaction
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P261, P264, P270, P272, P273, P280, P301 + P317, P302 + P352, P321, P330, P333 + P317, P362 + P364, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile

Which CAS number identifies 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile?
4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile is registered under CAS 2141947-89-7. You may also see it listed as Benzonitrile, 4-(3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)-, Benzonitrile, 4-[3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-, [4-(4-Cyanophenoxy)-2-formylphenyl]boronic Acid Pinacol Ester. Our catalogue number for this item is ZX-028746.
What are the formula and molar mass of 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile?
For 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile, its formula is C20H20BNO4 and its molar mass is 349.2 g/mol. The systematic (IUPAC) name is 4-[3-formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]benzonitrile. InChIKey XTMDXEDJWWVAKJ-UHFFFAOYSA-N lets you match it in any structure database.
How is 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile used in pharmaceutical QC?
4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile is a characterised reference material linked to Crisaborole. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile to my country?
Yes. Because 4-(3-Formyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)benzonitrile is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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