Is benzocaine hydrochloride the same material as benzocaine base?

No. Benzocaine hydrochloride, CAS 23239-88-5, is the hydrochloride salt, while benzocaine base is CAS 94-09-7. They differ in salt form, molecular-weight basis, solubility and assay expression. Specify the exact form and analytical basis rather than converting results as though they were the same material.

Does CAS 23239-88-5 by itself establish pharmaceutical or compendial grade?

No. The CAS confirms chemical identity, not compliance with a pharmacopoeia or authorization for a particular use. State the intended application and required standard, then review the exact grade specification, assay basis, impurity and residual-solvent controls, manufacturing documents, COA, TDS and SDS before qualification.

Benzocaine Hydrochloride CAS 23239-88-5

Benzocaine Hydrochloride , CAS 23239-88-5 , is the hydrochloride salt of ethyl 4-aminobenzoate. Its molecular formula is C9H12ClNO2 and molecular weight is 201.65 g/mol. It must not be confused with benzocaine free base, CAS 94-09-7. For procurement, define the intended use, specification, documentation and destination before evaluating any offered grade. Regulatory suitability, compendial status and end-use authorization must be confirmed for the exact offered grade and destination market.

CAS: 23239-88-5
Synonyms: Benzocaine Hydrochloride, Benzocaine HCl, Ethyl 4-aminobenzoate hydrochloride, 4-(Ethoxycarbonyl)anilinium chloride
Molecular Formula: C₉H₁₂ClNO₂
Grade: Confirm identity, assay basis, related substances and the exact standard or intended-use documents for the offered material; no regulated-use grade is assumed without supporting evidence.
Package: State required quantity and destination; confirm the current container, light or moisture protection, net weight, storage conditions and transport requirements against the current COA and SDS.

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Product Description

1 Identity and physicochemical profile

2 Applications and grade selection

3 Storage and handling

4 Safety, documentation and procurement

Identity and physicochemical profile

Item	Technical guidance
Correct identity	Benzocaine hydrochloride; ethyl 4-aminobenzoate hydrochloride
CAS number	23239-88-5
Formula / molecular weight	C₉H₁₂ClNO₂ / 201.65 g/mol
Identity boundary	The hydrochloride salt is distinct from benzocaine free base, CAS 94-09-7
Commercial specification	Assay, water, appearance, related substances and physical form follow the offered grade and analytical methods
Regulatory boundary	A chemical identity or COA alone does not establish pharmacopeial compliance, drug approval or suitability for human use

Applications and grade selection

Benzocaine Hydrochloride may be evaluated as a salt-form intermediate or reference material in controlled pharmaceutical, formulation and analytical work. The selected form should match the buyer’s process, solubility target, analytical method and regulatory file; data for benzocaine free base should not be applied automatically to this salt.

Confirm whether the project requires the hydrochloride salt or benzocaine free base before requesting a sample.
Compare identity, assay, water, related substances, residual solvents and dissolution or process performance against the approved specification.
For regulated work, define the required compendial, GMP, change-control, traceability and destination-market documents before quotation.

Storage and handling

Keep the material tightly closed and protected from moisture, excessive heat and light under the conditions stated in the current COA, TDS or SDS. Do not infer a universal refrigerated or inert-gas requirement without grade-specific documentation.

Safety, documentation and procurement

Use suitable containment, gloves, eye protection and dust control in accordance with the current SDS and site risk assessment. A purchase inquiry should state the exact salt form, specification, analytical methods, end use, quantity, packaging, destination and documentation requirements.

FAQ - Technical & Supply Chain

Q:
Is benzocaine hydrochloride the same material as benzocaine base?

A: No. Benzocaine hydrochloride, CAS 23239-88-5, is the hydrochloride salt, while benzocaine base is CAS 94-09-7. They differ in salt form, molecular-weight basis, solubility and assay expression. Specify the exact form and analytical basis rather than converting results as though they were the same material.
Q:
Does CAS 23239-88-5 by itself establish pharmaceutical or compendial grade?

A: No. The CAS confirms chemical identity, not compliance with a pharmacopoeia or authorization for a particular use. State the intended application and required standard, then review the exact grade specification, assay basis, impurity and residual-solvent controls, manufacturing documents, COA, TDS and SDS before qualification.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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