3,4-Dihydroxybenzoic acid
SIAL/08992 - analytical standard
Synonym: Protocatechuic acid
CAS Number: 99-50-3
Empirical Formula (Hill Notation): C7H6O4
Molecular Weight: 154.12
EC Number: 202-760-0
MDL Number: MFCD00002509
Linear Formula: (HO)2C6H3CO2H
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 08992-50MG
| application(s) | cleaning products cosmetics flavors and fragrances food and beverages personal care |
| assay | ≥97.0% (HPLC) |
| format | neat |
| grade | analytical standard |
| InChI | 1S/C7H6O4/c8-5-2-1-4(7(10 |
| InChI key | YQUVCSBJEUQKSH-UHFFFAOYSA |
| mp | 197-200 °C (dec.) (lit.) |
| Quality Level | 100  |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | OC(=O)c1ccc(O)c(O)c1 |
| technique(s) | gas chromatography (GC): suitable |
| HPLC: suitable |
| Application: | 3,4-Dihydroxybenzoic acid may be used as a reference standard for the determination of: • Phenols in biomass pre-treatment hydrolysates by high-performance liquid chromatography method. • 3,4-Dihydroxybenzoic acid in wine by high-performance liquid chromatography with a microbore column. |
| Biochem/physiol Actions: | Chemopreventive in several animal models of carcinogenesis. Blocks cell proliferation in the post-initiation phase. |
| General description: | 3,4-Dihydroxybenzoic acid is a catabolite of epinephrine. It is a phenolic compound and an important constituent of lignin present in wine, green and black tea, and herbal medicines, which exhibits anti-inflammatory and antitumor promotion. 3,4-Dihydroxybenzoic acid is also a model matrix for ionization of peptides, proteins and carbohydrates in the MALDI (matrix-assisted laser desorption ionization mass spectroscopy) technique. |
| Packaging: | Bottomless glass bottle. Contents are inside inserted fused cone. |
| Recommended products: | Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial . |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315 - H319 - H335 |
| Precautionary statements | P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥97.0% (HPLC) |
| mp | 197-200 °C (dec.) (lit.) |
| UNSPSC | 85151701 |