ChemicalBook >> CAS DataBase List >>3-Hydroxy-4-methoxybenzoic acid
3-Hydroxy-4-methoxybenzoic acid
- CAS No.
- 645-08-9
- Chemical Name:
- 3-Hydroxy-4-methoxybenzoic acid
- Synonyms
- ISOVANILLIC ACID;Diosmin Impurity A;AKOS 220-48;Thenblueacid;Isovanillic aci;Diosmin Impurity 1;acideisovanillique;IsovanillicAcid>Diosmin Impurity 10;RARECHEM AL BE 0068
- CBNumber:
- CB3303201
- Molecular Formula:
- C8H8O4
- Molecular Weight:
- 168.15
- MDL Number:
- MFCD00002507
- MOL File:
- 645-08-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-09-10 08:17:50
| Melting point | 250-253 °C(lit.) |
|---|---|
| Boiling point | 257.07°C (rough estimate) |
| Density | 1.3037 (rough estimate) |
| refractive index | 1.5090 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Powder |
| pka | 4.35±0.10(Predicted) |
| color | Beige to gray-brown |
| BRN | 2208365 |
| InChI | 1S/C8H8O4/c1-12-7-3-2-5(8(10)11)4-6(7)9/h2-4,9H,1H3,(H,10,11) |
| InChIKey | LBKFGYZQBSGRHY-UHFFFAOYSA-N |
| SMILES | COc1ccc(cc1O)C(O)=O |
| LogP | 1.350 (est) |
| CAS DataBase Reference | 645-08-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | A8D1DUX2PR |
| NIST Chemistry Reference | 3-Hydroxy-4-methoxybenzoic acid(645-08-9) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338-P280a-P304+P340-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | BZ4850000 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29189900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
3-Hydroxy-4-methoxybenzoic acid price More Price(75)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | I0295 | Isovanillic Acid >98.0%(HPLC)(T) | 645-08-9 | 10g | $79 | 2021-12-16 | Buy |
| TCI Chemical | I0295 | Isovanillic Acid >98.0%(HPLC)(T) | 645-08-9 | 25g | $161 | 2026-04-30 | Buy |
| Usbiological | 279771 | 3-Hydroxy-4-methoxybenzoic acid Asreported | 645-08-9 | 25g | $262 | 2026-06-03 | Buy |
| Usbiological | 279771 | 3-Hydroxy-4-methoxybenzoic acid Asreported | 645-08-9 | 50g | $389 | 2026-06-03 | Buy |
| Biosynth | FH38016 | 3-Hydroxy-4-methoxybenzoic acid | 645-08-9 | 50g | $314 | 2026-06-04 | Buy |
3-Hydroxy-4-methoxybenzoic acid Chemical Properties,Uses,Production
Chemical Properties
beige to grey-brown powder
Uses
Isovanillic acid has been used in the synthesis of opiate alkaloid precursor, dihydrothebainone.
Definition
ChEBI: A methoxybenzoic acid that is 4-methoxybenzoic acid bearing a hydroxy substituent at position 3.
General Description
Rate of oxidation of isovanillic acid by washed cells of Pseudomonas putida has been reported.
3-Hydroxy-4-methoxybenzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 431)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| SICHUAN JILONGXINGRUI PHARMA CO,.LTD | 0830-8999890 13883082125 | 511598975@qq.com | China | 13 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| future industrial shanghai co., ltd | 400-0066400 13621662912 | sales@jonln.com | China | 1989 | 65 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TAIYUAN RHF CO.,LTD. | +86 351 7031519 | sales@RHFChem.com | China | 2334 | 56 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Ark Pharm, Inc. | 847-367-3680 | sales@arkpharminc.com | United States | 1669 | 56 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 |
View Lastest Price from 3-Hydroxy-4-methoxybenzoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-10 | Isovanillic acid
645-08-9
|
98.31% | 10g | TargetMol Chemicals Inc. | |||
 |
2026-03-20 | 3-Hydroxy-4-methoxybenzoic acid
645-08-9
|
1KG | 99% | 20 mt | Hebei Chuanghai Biotechnology Co., Ltd | ||
 |
2025-04-15 | 3-Hydroxy-4-methoxybenzoic acid
645-08-9
|
$95.00-200.00 | 1kg | 99% | 20ton | Hebei Zhuanglai Chemical Trading Co.,Ltd |
-
- Isovanillic acid
645-08-9
- $0.00
- 98.31%
- TargetMol Chemicals Inc.
-
- 3-Hydroxy-4-methoxybenzoic acid
645-08-9
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 3-Hydroxy-4-methoxybenzoic acid
645-08-9
- $95.00-200.00
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
645-08-9(3-Hydroxy-4-methoxybenzoic acid)Related Search:
AKOS 220-48
4-METHOXY-3-HYDROXYBENZOIC ACID
3-HYDROXYANISIC ACID
3-HYDROXY-4-METHOXYBENZOIC ACID
3-hydroxy-4-methoxy-benzoicaci
RARECHEM AL BE 0068
Isovanillic aci
4-Carboxy-2-hydroxyanisole, Isovanillic acid, 2-Methoxy-5-carboxyphenol, 5-Carboxyguaiacol, 3-Hydroxy-p-anisic acid
Thenblueacid
Diosmin Impurity 10
Diosmin Impurity 1
3-hydroxy-p-anisicaci
Acide isovanillique
acideisovanillique
Benzoic acid, 3-hydroxy-4-methoxy-
p-Anisic acid, 3-hydroxy-
ISOVANILLIC ACID (3-HYDROXY-4-METHOXYBENZOIC ACID)
3-Hydroxy-4-methoxybenzoic acid, 97+%
5-Carboxy-2-methoxyphenol
3-Hydroxy-4-methoxybenzoic acid,99%
3-hydroxy-p-anisic acid
3-Hydroxy-4-Methoxybenzoic
3-Hydroxy-4-Methoxybenzoic acid, 99% 5GR
4-Carboxy-2-hydroxyanisole, Isovanillic acid
IsovanillicAcid>
Isovanillic acid,97%
Diossmin impurity 19
Isovanillic acid, 10 mM in DMSO
Diosmin Impurity A
ISOVANILLIC ACID
645-08-9
HOC6H3OCH3CO2H
Organic Building Blocks
Building Blocks
C8
Carbonyl Compounds
Carboxylic Acids
sy
Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts
BenzoicAcidDerivative
Acids and Derivatives
Alcohols and Derivatives
API intermediates
