Are p-Hydroxybenzyl Alcohol and 4-Hydroxybenzyl Alcohol the same substance?

Yes. Both names identify 4-(hydroxymethyl)phenol, CAS 623-05-2. It is not p-hydroxybenzaldehyde, hydroquinone or benzyl alcohol. Avoid using the abbreviation PHBA as the sole identifier because it is used for other para-hydroxybenzene compounds.

What is p-Hydroxybenzyl Alcohol used for?

It is used as a phenolic building block in pharmaceutical, agrochemical, fragrance and specialty-organic synthesis. The hydroxymethyl and phenolic groups allow selective derivatization, so the required impurity profile should match the intended synthesis route rather than a single generic grade.

Which batch specifications should be agreed for p-Hydroxybenzyl Alcohol?

Agree HPLC or GC assay with the method, appearance and color, melting range, water or loss on drying, and limits for p-hydroxybenzaldehyde, phenol-related impurities and residual solvents where relevant. Supplier grades and analytical methods differ.

What form and packaging should be confirmed?

Confirm whether the offer is crystalline powder, flake or another physical form, and request the corresponding moisture-resistant packaging and net weight. Store cool, dry and protected from light and incompatible oxidizing conditions.

p-Hydroxybenzyl Alcohol CAS 623-05-2

p-Hydroxybenzyl Alcohol, CAS 623-05-2, is also known as 4-hydroxybenzyl alcohol or 4-(hydroxymethyl)phenol. It is an aromatic alcohol with phenolic and hydroxymethyl functionality, used as a phenolic building block in organic synthesis. Confirm the requested isomer, assay or impurity limits and intended synthesis route, quantity, packaging, destination and document availability before ordering.

CAS: 623-05-2
Synonyms: p-Hydroxybenzyl Alcohol; 4-Hydroxybenzyl Alcohol; 4-(Hydroxymethyl)phenol
Einecs: 210-768-0
Molecular Formula: C₇H₈O₂
Grade: Confirm current product specification
Package: Confirm packaging for the offered form

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Product Description

Chemical identity: p-Hydroxybenzyl Alcohol; CAS 623-05-2; molecular formula: C₇H₈O₂; EC 210-768-0.

p-Hydroxybenzyl Alcohol is an aromatic alcohol with phenolic and hydroxymethyl functionality. p-Hydroxybenzyl Alcohol and 4-Hydroxybenzyl Alcohol are names for the same substance; PHBA is too ambiguous to use as the principal product identifier.

In the RFQ, state: that the requested material is p-Hydroxybenzyl Alcohol / 4-Hydroxybenzyl Alcohol, the required assay or impurity limits, and intended synthesis route; quantity, packaging, destination and required documents.

FAQ - Technical & Supply Chain

Q:
Are p-Hydroxybenzyl Alcohol and 4-Hydroxybenzyl Alcohol the same substance?

A: Yes. Both names identify 4-(hydroxymethyl)phenol, CAS 623-05-2. It is not p-hydroxybenzaldehyde, hydroquinone or benzyl alcohol. Avoid using the abbreviation PHBA as the sole identifier because it is used for other para-hydroxybenzene compounds.
Q:
What is p-Hydroxybenzyl Alcohol used for?

A: It is used as a phenolic building block in pharmaceutical, agrochemical, fragrance and specialty-organic synthesis. The hydroxymethyl and phenolic groups allow selective derivatization, so the required impurity profile should match the intended synthesis route rather than a single generic grade.
Q:
Which batch specifications should be agreed for p-Hydroxybenzyl Alcohol?

A: Agree HPLC or GC assay with the method, appearance and color, melting range, water or loss on drying, and limits for p-hydroxybenzaldehyde, phenol-related impurities and residual solvents where relevant. Supplier grades and analytical methods differ.
Q:
What form and packaging should be confirmed?

A: Confirm whether the offer is crystalline powder, flake or another physical form, and request the corresponding moisture-resistant packaging and net weight. Store cool, dry and protected from light and incompatible oxidizing conditions.

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