5-Acetylsalicylic Acid Methyl Ester

Name: 5-Acetylsalicylic Acid Methyl Ester
Brand: Vaqora Chemicals
SKU: VQ-021419

About 5-Acetylsalicylic Acid Methyl Ester

Vaqora Chemicals supplies 5-Acetylsalicylic Acid Methyl Ester, a metabolite or degradation product of Acetylsalicylic Acid registered under CAS number 16475-90-4. Formula C10H10O4, molecular weight 194.18 g/mol. Its systematic (IUPAC) name is methyl 5-acetyl-2-hydroxybenzoate. Alternative names: Methyl 5-acetylsalicylate and 5-Acetyl-2-hydroxybenzoic Acid Methyl Ester.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Analytical teams use this compound to identify metabolites and degradants of Acetylsalicylic Acid, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 5-Acetylsalicylic Acid Methyl Ester in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling
Fine chemical synthesis

Industries

Related to Acetylsalicylic Acid

View every impurity, metabolite and intermediate we list for Acetylsalicylic Acid.

Acetylsalicylic Acid impurities

Specifications & identifiers

Chemical identifiers
Product name	5-Acetylsalicylic Acid Methyl Ester
Catalogue No.	VQ-021419
CAS Number	16475-90-4
IUPAC name	methyl 5-acetyl-2-hydroxybenzoate
Molecular formula	C₁₀H₁₀O₄
Molecular weight	194.18 g/mol
Exact mass	194.0579
Grade	Reference Standard
HSN code	38229090
InChIKey	XLSMGNNWSRNTIQ-UHFFFAOYSA-N
SMILES	CC(=O)C1=CC(=C(C=C1)O)C(=O)OC
PubChem CID	85444

Physical properties
Physical form	Solid
LogP (XLogP3)	2
H-bond donors / acceptors	1 / 4
TPSA	63.6 Å²
Synonyms	Methyl 5-acetylsalicylate, 5-Acetyl-2-hydroxybenzoic Acid Methyl Ester, Benzoic acid, 5-acetyl-2-hydroxy-, methyl ester, Methyl 2-hydroxy-5-acetylbenzoate, 5-Acetyl methyl salicylate, methyl 5-acetyl-2-hydroxy-benzoate, methyl-5-acetylsalicylate, 5-Acetylmethylsalicylate, 5-acetyl-2-hydroxy-benzoic ac, methyl-5-acetyl-2-hydroxybenzoate, CS-M1161

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 5-Acetylsalicylic Acid Methyl Ester?

The CAS Registry Number of 5-Acetylsalicylic Acid Methyl Ester is 16475-90-4. It is also known as Methyl 5-acetylsalicylate, 5-Acetyl-2-hydroxybenzoic Acid Methyl Ester, Benzoic acid, 5-acetyl-2-hydroxy-, methyl ester.

What is the molecular formula and molecular weight of 5-Acetylsalicylic Acid Methyl Ester?

5-Acetylsalicylic Acid Methyl Ester has the molecular formula C10H10O4 and a molecular weight of 194.18 g/mol. Its IUPAC name is methyl 5-acetyl-2-hydroxybenzoate.

What is 5-Acetylsalicylic Acid Methyl Ester used for?

5-Acetylsalicylic Acid Methyl Ester is supplied as a characterised reference material related to Acetylsalicylic Acid. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 5-Acetylsalicylic Acid Methyl Ester can I order?

We supply 5-Acetylsalicylic Acid Methyl Ester in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Acetylsalicylic Acid Methyl Ester?

Yes. Every lot of 5-Acetylsalicylic Acid Methyl Ester is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 5-Acetylsalicylic Acid Methyl Ester be shipped internationally?

Yes. 5-Acetylsalicylic Acid Methyl Ester is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.