Molekula
4-Acetamidobenzoic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4-Acetamidobenzoic acid is an aromatic amide derivative of benzoic acid. It is commonly used in pharmaceutical synthesis, particularly as acedoben, the 4-acetamidobenzoic acid component of the immunomodulatory drug inosine pranobex (inosine acedoben dimepranol), and in dye manufacturing. It is also employed in organic synthesis for functional group transformations. This chemical has a CAS number of 556-08-1, with the molecular formula CH3CONHC6H4CO2H and a molecular weight of 179.17. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies 4-Acetamidobenzoic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | 252° -257°C |
| Loss on Drying | ≤0.5% |
| Purity | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 256.5 °C |
| Vapour Pressure | 0.00000071 mmHg |
Source: PubChem CID 19266 (CAMEO Chemicals, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 17476320 |
| CAS Number | 556-08-1 |
| IUPAC Name | 4-acetamidobenzoic acid |
| EC Number | 209-114-7 |
| Molecular Formula | CH3CONHC6H4CO2H |
| Molecular Weight | 179.17 |
| Exact Mass | 179.0582 |
| SMILES | CC(=O)NC1=CC=C(C=C1)C(=O)O |
| InChIKey | QCXJEYYXVJIFCE-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H9NO3/c1-6(11)10-8-4-2-7(3-5-8)9(12)13/h2-5H,1H3,(H,10,11)(H,12,13) |
| PubChem CID | 19266 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29242977 |
| Tariff Code | 2924297099 |
Safety & GHS
Hazard statements
- H315 Causes skin irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 4-(Acetylamino)benzoic acid
- 4-Carboxyacetanilide
- Acedoben
- Acedobene
- Benzoic acid, 4-(acetylamino)-
- N-Acetyl-p-aminobenzoic acid
- p-Acetamidobenzoic acid
- p-Acetoaminobenzoic acid
- p-Acetylaminobenzoic acid
- PAAB
Frequently asked questions
What is 4-Acetamidobenzoic acid commonly used for?
It is primarily used in pharmaceutical synthesis (e.g., as acedoben, a component of inosine pranobex) and in dyes, as well as in organic synthesis for functionalized aromatic compounds.
What is the molecular formula and molecular weight of 4-Acetamidobenzoic acid?
The molecular formula is CH₃CONHC₆H₄CO₂H, and the molecular weight is 179.17 g/mol.
How should 4-Acetamidobenzoic acid be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What purity grades or specifications does Molekula offer for this product?
Molekula supplies pharmaceutical-grade (USP/EP/JP) and high-purity analytical-grade 4-Acetamidobenzoic acid; specifications are available upon request.
Can Molekula supply 4-Acetamidobenzoic acid in bulk quantities?
Yes, bulk quantities are available—minimum order quantities and packaging options (e.g., drums, bags) can be discussed with our sales team.
What documentation is provided with an order of 4-Acetamidobenzoic acid?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a technical data sheet outlining purity, identity, and compliance details.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.