Is Diacetamate CAS 2623-33-8 the same substance as diacetamide?

No. Diacetamate is 4-acetamidophenyl acetate, also called N,O-diacetyl-4-aminophenol or 4′-acetoxyacetanilide. Diacetamide is a different, much smaller compound. Match material by the full chemical name, CAS 2623-33-8, structure and an agreed chromatographic or spectral identity method, not by the shortened name alone.

Does CAS 2623-33-8 by itself define a pharmacopoeial impurity standard or a synthesis grade?

No. The CAS number establishes chemical identity, not intended use, traceability level or compliance with a pharmacopoeia. State whether the material is required as a reference standard, impurity standard or synthesis intermediate, then define assay and identity methods, impurity profile, water or residual solvents, quantity, documentation and acceptance criteria.

Diacetamate CAS 2623-33-8

Diacetamate , CAS 2623-33-8 and EC 220-077-6 , is 4-acetamidophenyl acetate , an N,O-diacetylated aromatic compound with molecular formula C10H11NO3 and molecular weight 193.20 g/mol. It is not a diacetic-acid amide salt or acetamide acetate. Supply should be evaluated as a research or synthesis material using structure-specific identity, assay, residual starting materials, hydrolysis products and residual-solvent controls. Chemical identity alone does not establish pharmaceutical grade or medicinal-use suitability.

CAS: 2623-33-8
Synonyms: Diacetamate, 4-Acetamidophenyl acetate, p-Acetamidophenyl acetate, N,O-Diacetyl-4-aminophenol
Einecs: 220-077-6
Molecular Formula: C₁₀H₁₁NO₃
Grade: Confirm identity by an appropriate analytical method, assay basis, related substances, residual solvents and storage requirements against the current COA; buyer qualification is required.
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.

Request a quote

Share:

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	Diacetamate; 4-acetamidophenyl acetate
CAS / EC	2623-33-8 / 220-077-6
Formula / molecular weight	C₁₀H₁₁NO₃ / 193.20 g/mol
Structural description	Para-substituted aromatic compound containing one acetamide and one phenyl acetate group
Key purchase controls	Identity, assay, positional isomers, residual aminophenol or acetylating materials, mono-deacetylated products, water and residual solvents
Grade boundary	A CAS match or synthesis-grade COA does not establish compendial, GMP or human-use suitability

Applications and grade selection

Diacetamate may be evaluated as an acetyl-protected aromatic intermediate or reference material in controlled organic synthesis and analytical work. Its suitability depends on structural identity, deacetylation profile, impurity controls and the buyer’s downstream transformation; generic pharmaceutical claims should not replace grade-specific qualification.

Confirm the 4-acetamidophenyl acetate structure and distinguish it from similarly named salts, amides and acetates.
Set limits for residual starting materials, positional isomers, mono-deacetylated products, water and solvents.
Run the intended hydrolysis, deprotection or downstream synthesis before approving project-volume supply.

Storage and handling

Store tightly closed and protected from moisture, heat and incompatible acidic or basic conditions under the current COA and SDS. Follow lot-specific guidance for temperature, sampling and retest period.

Safety, documentation and procurement

Use suitable gloves, eye protection and dust or exposure controls according to the current SDS. An inquiry should state the intended research or synthesis use, specification, quantity, package, destination and required documents.

FAQ - Technical & Supply Chain

Q:
Is Diacetamate CAS 2623-33-8 the same substance as diacetamide?

A: No. Diacetamate is 4-acetamidophenyl acetate, also called N,O-diacetyl-4-aminophenol or 4′-acetoxyacetanilide. Diacetamide is a different, much smaller compound. Match material by the full chemical name, CAS 2623-33-8, structure and an agreed chromatographic or spectral identity method, not by the shortened name alone.
Q:
Does CAS 2623-33-8 by itself define a pharmacopoeial impurity standard or a synthesis grade?

A: No. The CAS number establishes chemical identity, not intended use, traceability level or compliance with a pharmacopoeia. State whether the material is required as a reference standard, impurity standard or synthesis intermediate, then define assay and identity methods, impurity profile, water or residual solvents, quantity, documentation and acceptance criteria.

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.

Current Language

Change Language