4-Hydroxy-3-methoxybenzoic acid (CAS 121-34-6) — formula C8H8O4, molecular weight 168.15; category organic chemicals.
4-Hydroxy-3-methoxybenzoic acid (CAS 121-34-6) is a chemical raw material in the organic chemicals category. Its molecular formula C8H8O4 comprises 8 C, 8 H, 4 O atoms. Its molecular weight is about 168.15. Reported physicochemical data: melting point around 211.5, LogP about 1.43. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 121-34-6 |
|---|---|
| Molecular Formula | C8H8O4 |
| Molecular Weight | 168.15 |
| Melting Point | 211.5 |
| LogP | 1.43 |
| Applications | flavoring agent or adjuvant, Fragrance Ingredients, Flavouring Agent, Flavoring Agents, Benzoic acid, 4-hydroxy-3-methoxy-: ACTIVE |
| Category | Organic Chemicals |
Documented applications: flavoring agent or adjuvant, Fragrance Ingredients, Flavouring Agent, Flavoring Agents, Benzoic acid, 4-hydroxy-3-methoxy-: ACTIVE.
4-Hydroxy-3-methoxybenzoic acid is a carbon-based organic compound with CAS registry number 121-34-6 and molecular formula C8H8O4 (molecular weight 168.15), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 121-34-6
Its molecular formula C8H8O4 comprises 8 C, 8 H, 4 O atoms.
Also known as: 4-Hydroxy-3-methoxybenzoic acid · 4-羟基-3-甲氧基苯甲酸
Category: organic chemicals
The CAS registry number of 4-Hydroxy-3-methoxybenzoic acid is 121-34-6.
Molecular formula C8H8O4, molecular weight 168.15.
It is also registered under: 4-Hydroxy-3-methoxybenzoic acid, 4-羟基-3-甲氧基苯甲酸.
Recorded applications: flavoring agent or adjuvant, Fragrance Ingredients, Flavouring Agent, Flavoring Agents, Benzoic acid, 4-hydroxy-3-methoxy-: ACTIVE.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for 4-Hydroxy-3-methoxybenzoic acid (CAS 121-34-6), compiled from public chemistry databases.
| CAS Registry Number | 121-34-6 |
|---|---|
| PubChem CID | 8468 |
| Molecular formula | C8H8O4 |
| IUPAC name | 4-hydroxy-3-methoxybenzoic acid |
| UNII (FDA) | GM8Q3JM2Y8 |
| FEMA number | 3988 |
| JECFA number | 959 |
| Molecular Weight | 168.15 |
|---|---|
| XLogP3 | 1.4 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 2 |
| Exact Mass | 168.04225873 |
| Monoisotopic Mass | 168.04225873 |
| Topological Polar Surface Area | 66.8 |
| Heavy Atom Count | 12 |
| Melting Point | 211.5 |
|---|---|
| Melting Point | 211.5 °C |
| Solubility | 1500 |
| Solubility | 1.5 mg/mL at 14 °C |
| Vapor Pressure | 0.0000171 [mmHg] |
| LogP | 1.43 |
| LogP | 1.46 |
| Dissociation Constants | 4.51 (at 25 °C) |
Vanillic acid; 4-HYDROXY-3-METHOXYBENZOIC ACID; 121-34-6; Acide vanillique; Benzoic acid, 4-hydroxy-3-methoxy-; 3-Methoxy-4-hydroxybenzoic acid; GM8Q3JM2Y8; DTXSID6059522; Acid, 4-Hydroxy-3-methoxybenzoic; NSC-3987; NSC-674322; DTXCID1033668; FEMA NO. 3988; CHEBI:30816; Acid, Vanillic; 4 Hydroxy 3 methoxybenzoic Acid
| Regulatory & Food Contact | EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Astringent, Vanilla No safety concern at current levels of intake when used as a flavouring agent |
|---|---|
| GHS notification summary | 72.4% (97 / 134) |
| GHS notification summary | 72.4% (97 / 134) |
|---|---|
| Reported hazard statements | H315 (27.6%), H319 (27.6%), H335 (26.9%) |
This chemical does not meet GHS hazard criteria for 72.4% (97 of 134) of all reports.
H315 (27.6%): Causes skin irritation [Warning Skin corrosion/irritation]
4-Hydroxy-3-methoxybenzoic acid · CAS 121-34-6 · C8H8O4. UNII GM8Q3JM2Y8. Melting Point: 211.5; Melting Point: 211.5 °C; Solubility: 1500.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 4-羟基-3-甲氧基苯甲酸