4-tert-Butylphenylboronic Acid

Name: 4-tert-Butylphenylboronic Acid
Brand: Royalchem
Rating: 5.0 (66 reviews)

CAS NO. 123324-71-0

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Model:
≥99.0%
Brand:
Royalchem
Code:
123324-71-0

Product Description

Product Name	4-tert-Butylphenylboronic Acid CAS 123324-71-0 \| EC No. 602-928-7 Synonyms: (4-tert-butylphenyl)boronic acid, 4-t-butylbenzeneboronic acid, p-tert-butylphenylboronic acid
Formula / MW	C₁₀H₁₅BO₂ / 178.04
Structure
Product Type	Arylboronic acid building block for Suzuki–Miyaura coupling; introduces the 4-tert-butylphenyl group into biaryl scaffolds.
Specification	Appearance: white to off-white powder Assay: ≥ 99.0% Melting point: approx. 188 °C (literature) Typical values; the batch COA governs.
Applications	OLED materials: anthracene- and pyrene-based emitters and host materials — the bulky tert-butyl group improves solubility and suppresses aggregation Pharmaceutical intermediates: biaryl drug intermediates carrying a 4-tert-butylphenyl group Liquid crystals & functional materials: biphenyl liquid crystals, organic semiconductor side groups
Packing & Storage	Fiber drums with PE liner or foil bags; pack size per order. Keep sealed, dry and away from light to prevent moisture uptake and dehydration to the boroxine.
Transport	Non-hazardous general cargo, no UN number. GHS Warning (H315 skin, H319 eye, H335 respiratory irritation) — avoid dust, wear gloves and eye protection; see SDS.

Sourcing 4-tert-Butylphenylboronic Acid?
Royalchem supplies CAS 123324-71-0, assay ≥99.0%, with batch COA, SDS and samples; FOB / CIF shipping worldwide. Please state your application (OLED / pharma / other), single-impurity limits and quantity.

FAQ

What is CAS 123324-71-0?	4-tert-Butylphenylboronic Acid, C₁₀H₁₅BO₂, MW 178.04 — an arylboronic acid used in Suzuki–Miyaura coupling to install the 4-tert-butylphenyl group.
What is it used for?	OLED emitters and host materials, biaryl pharmaceutical intermediates and liquid-crystal materials, all made by palladium-catalysed Suzuki coupling with aryl halides.
Why do melting point and assay vary between suppliers?	Arylboronic acids partly dehydrate to the cyclic boroxine on storage or heating, shifting melting point and apparent assay. Coupling reactions are unaffected; dose by the COA assay.
Is it hazardous to ship?	No. General cargo, no UN number; GHS Warning-level irritant — standard solid-chemical handling per the SDS.
Can you provide COA, SDS and samples?	Yes. Batch COA and SDS with every shipment; samples on request.