3,4-Dihydroxybenzoic acid
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
powder
|
| Molecular Weight |
154.12
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
White crystalline powder
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
3,4-Dihydroxybenzoic acid
CAS No.: 99-50-3
Molecular Formula: C7H6O4
Molecular Weight: 154.12
Physical and Chemical Properties
- Appearance: White to off-white crystalline powder
- Melting Point: 198–202 °C
- Density: 1.54 g/cm3 (25 °C)
- Solubility: Soluble in hot water, ethanol, ether; slightly soluble in cold water
- Odor: Odorless
- Stability: Gradually discolors when exposed to air and light; stable under sealed condition
Application
- Fine chemical intermediate: Used for synthesis of dyes, pharmaceuticals and antioxidants.
- Cosmetic raw material: Antioxidant and skin conditioning agent.
- Analytical reagent: Applied in chemical analysis and laboratory research.
Storage Condition
Keep tightly sealed. Store in cool, dry and dark place, away from air and oxidants.
Certificate of Analysis
| Item | Specification | Test Result | Method |
| Product Name | 3,4-Dihydroxybenzoic acid | Compliant | Visual & Identification |
| CAS No. | 99-50-3 | 99-50-3 | Standard |
| Molecular Formula | C7H6O4 | C7H6O4 | Standard |
| Molecular Weight | 154.12 | 154.12 | Standard |
| Appearance | White crystalline powder | White powder | Visual Inspection |
| Purity (HPLC) | ≥99.0% | 99.71% | High Performance Liquid Chromatography |
| Melting Point | 198–202 °C | 199.2–200.5 °C | Capillary Method |
| Loss on Drying | ≤0.30% | 0.09% | Karl Fischer Titration |
| Residue on Ignition | ≤0.05% | 0.02% | Gravimetric Method |
| Heavy Metals | ≤10 ppm | <3 ppm | Atomic Absorption Spectrometry |
