# 3,4-dihydroxybenzoic acid

> chemical compound

**Wikidata**: [Q418599](https://www.wikidata.org/wiki/Q418599)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Protocatechuic_acid)  
**Source**: https://4ort.xyz/entity/3-4-dihydroxybenzoic-acid


## References

1. Source
2. 3,4-dihydroxybenzoic acid. Global Substance Registration System
3. [CAS Common Chemistry](https://commonchemistry.cas.org/detail?cas_rn=99-50-3)
4. 3,4-DIHYDROXYBENZOIC ACID
5. PROTOCATECHUIC ACID. ChEMBL
6. 2BUV
7. 3PCA
8. 1B4U
9. 3LMX
10. 1EOB
11. 4RGX
12. 1N8Q
13. 1PHH
14. 1YKP
15. 1YKN
16. 1YKL
17. 3MV6
18. 4J0I
19. 3O5U
20. 4PAF
21. 5FAN
22. 4FHT
23. 3HKP
24. 4EYK
25. 2BV0
26. 3DX5
27. 2BSL
28. 3WRC
29. protocatechuic acid. ChemSpider
30. A taxonomical study of the subtribe leontodontinae based on the distribution of phenolic compounds
31. Multiple gradient development TLC in analysis of complex phenolic acids fromLycopus europeaus L.
32. Phenolic acids in rapeseed and mustard
33. Isolation and Identification of an Antioxidative Component in Canola Meal
34. Content of Phenolic Acids in Leaves of Menyanthes trifoliata
35. Antioxidative phenolic compounds isolated from almond skins (Prunus amygdalus Batsch).
36. Changes in Phenolic Acid Contents ofDiospyroslotusL. during Fruit Development
37. Analysis of phenolics of bud exudate of Populus ciliata by GC-MS
38. Carboxylic Acids of Moroccan Pinus Pinaster Bark Extract
39. Analysis of Phenolics of Bud Exudates of Populus cathayana and Populus szechuanica by GC-MS
40. Phenolic analysis of bud exudate of Populus lasiocarpa by GC/MS
41. Variation of Flavonoids in Allium cepa
42. Antibacterial and antioxidant activities of quercetin oxidation products from yellow onion (Allium cepa) skin
43. Local plants as potential sources of tannins in Egypt, part. IV (Aceraceae to Flacourtiaceae)
44. Fluorometric Analysis of Phenolics in Persimmons
45. Identification of Some Phenolic Compounds in Bilberry Juice Vaccinium myrtillus
46. Phenolic compounds from Hypericum perforatum
47. Phenolic acids in fresh and retted jute plants (Corchorus capsularis andCorchorus olitorius)
48. Low Molecular Weight Polyphenols in Cork ofQuercus suber
49. Solid-phase extraction and reversed-phase high-performance liquid chromatography of free phenolic acids in some Echinacea species
50. Characterisation of oligomeric and polymeric procyanidins from grape seeds by liquid secondary ion mass spectrometry