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Methyl 5-acetylsalicylate

Also known as: 5-Acetylsalicylic Acid Methyl Ester, Methyl 5-acetyl-2-hydroxybenzoate, 5-Acetyl-2-hydroxybenzoic Acid Methyl Ester, Methyl 2-hydroxy-5-acetylbenzoate, Methyl 5-acetyl-2-hydroxybenzoate, 5-ACETYL 2-METHYLSALICYLATE, METHYL 5-ACETHYLSALICYLATE, Benzoic acid, 5-acetyl-2-hydroxy-, methyl ester

Methyl 5-acetylsalicylate (CAS 16475-90-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.184 g/mol. Key properties include a melting point of 62-64 °C(lit.), a boiling point of 345.4±27.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 138.0±17.2 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16475-90-4
Jingsj CID
J-19168-4
Molecular Formula
C10H10O4
Molecular Weight
194.184 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point62-64 °C(lit.)
Boiling Point345.4±27.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point138.0±17.2 °C
Exact Mass194.057907
PSA63.60000
LogP2.45
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.548

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 5-acetylsalicylate?

The CAS number of Methyl 5-acetylsalicylate is 16475-90-4.

What are the molecular formula and molecular weight of Methyl 5-acetylsalicylate?

Methyl 5-acetylsalicylate has molecular formula C10H10O4 and molecular weight 194.184 g/mol.

Is Methyl 5-acetylsalicylate hazardous?

Methyl 5-acetylsalicylate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Methyl 5-acetylsalicylate?

For Methyl 5-acetylsalicylate, Upstream Products: Methyl salicylate, Methanol, 5-Acetylsalicylic acid; Downstream Products: 4-(2-Amino-1-hydroxyethyl)-2-(hydroxymethyl)phenol, Salmeterol, Spizofurone.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Methyl 5-acetylsalicylate (CAS 16475-90-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19168-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.