Methyl gallate
Also known as: 3,4,5-Trihydroxybenzoic acid methyl ester, Methyl 3,4,5-trihydroxybenzoate, Benzoic acid, 3,4,5-trihydroxy-, methyl ester
Methyl gallate (CAS 99-24-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O5 and a molecular weight of 184.146 g/mol. Key properties include a melting point of 201-204 °C, a boiling point of 450.1±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 190.8±20.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 99-24-1
- Jingsj CID
- J-12200-9
- Molecular Formula
- C8H8O5
- Molecular Weight
- 184.146 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 201-204 °C |
|---|---|
| Boiling Point | 450.1±40.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 190.8±20.8 °C |
| Exact Mass | 184.037170 |
| PSA | 86.99000 |
| LogP | 1.54 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.631 |
| Additional Property | SOLUBLE IN HOT WATER |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Bacterial[1] |
|---|---|
| Additional Information | [1]. Kang MS, et al. Inhibitory effect of methyl gallate and gallic acid on oral bacteria. J Microbiol. 2008 Dec;46(6):744-50. [2]. Hsieh TJ, et al. Protective effect of methyl gallate from Toona sinensis (Meliaceae) against hydrogen peroxide-induced oxidative stress and DNA damage in MDCK cells. Food Chem Toxicol. 2004 May;42(5):843-50. [3]. Lee H, et al. Methyl gallate exhibits potent antitumor activities by inhibiting tumor infiltration of CD4+CD25+ regulatory T cells. J Immunol. 2010 Dec 1;185(11):6698-705. |
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Methyl gallate?
The CAS number of Methyl gallate is 99-24-1.
What are the molecular formula and molecular weight of Methyl gallate?
Methyl gallate has molecular formula C8H8O5 and molecular weight 184.146 g/mol.
Is Methyl gallate hazardous?
Methyl gallate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Methyl gallate?
For Methyl gallate, Upstream Products: Methanol, Gallic acid, Dimethyl sulfate; Downstream Products: 2-Methoxy-5-[(Z)-2-(7-methoxy-1,3-benzodioxol-5-yl)ethenyl]phenol, 3-O-Methylgallic acid, Methyl 3,4-dihydroxy-5-methoxybenzoate.
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 gallate (CAS 99-24-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12200-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.