4-Pyridylboronic Acid (contains varying amounts of Anhydride) , ≥96.0% , 1692-15-5

Synonym(s):
4-Pyridineboronic acid;4-Pyridylboronic acid

CAS NO.：1692-15-5

Empirical Formula: C5H6BNO2

Molecular Weight: 122.92

MDL number: MFCD01074545

EINECS: 671-679-4

PRODUCT Properties

• Melting point: >300 °C (lit.)
• Boiling point: 308.8±34.0 °C(Predicted)
• Density: 1.22±0.1 g/cm3(Predicted)
• storage temp.: -20°C
• solubility: Aqueous Acid (Slightly), Water (Slightly)
• form: Solid
• pka: 7.59±0.10(Predicted)
• color: White to Off-White
• BRN: 471944
• InChI: InChI=1S/C5H6BNO2/c8-6(9)5-1-3-7-4-2-5/h1-4,8-9H
• InChIKey: QLULGIRFKAWHOJ-UHFFFAOYSA-N
• SMILES: C1=NC=CC(B(O)O)=C1
• CAS DataBase Reference: 1692-15-5(CAS DataBase Reference)

Description and Uses

Pyridine-4-boronic acid is a kind of boronic acid derivative. It is useful building blocks in crystal engineering. It can also be used as a catalyst to act as a dehydrative condensation agent to synthesize amides using carboxylic acid and amines as raw materials. Its derivative, polystyrene-bound 4-pyridineboronic acid, is a useful catalyst for amidation reaction and esterification of alpha-hydrocarboxylic acids.

Boronic acid derivatives and their binding affinities with diols.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P280a-P304+P340-P305+P351+P338-P405-P501a
• Hazard Codes: Xn,Xi,C,F
• Risk Statements: 36/37/38-22-34-11
• Safety Statements: 22-24/25-36/37/39-26-45-16
• WGK Germany: 3
• Hazard Note: Irritant
• HazardClass: IRRITANT, KEEP COLD
• HS Code: 29339900