Product details
Bulk supply and Contract manufacturing of Fine Chemicals,Pharmaceutical Intermediates,APIs from kilos to tons


  • CAS:


  • Synonym:

    3,4-Dihydroxybenzyl aldehyde
    Protocatechuic aldehyde


CAS No: 139-85-5
Product Name: 3,4-Dihydroxybenzaldehyde
Other Name: 
3,4-Dihydroxybenzyl aldehyde
Protocatechuic aldehyde
Density: 1.4±0.1 g/cm3
Boiling Point: 295.4±20.0 °C at 760 mmHg
Melting Point: 150-157 °C(lit.)
Molecular Formula: C7H6O3
Molecular Weight: 138.12
Flash Point: 146.7±18.3 °C
Exact Mass: 138.031693
PSA: 57.53000
LogP: 1.14
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Index of Refraction: 1.674
Storage condition: 2-8°C
Stability: Stable. Incompatible with strong bases, strong oxidizing agents.
Water Solubility: 50 g/L (20 ºC)
Appearance: Light gray or off-white crystalline powder
Assay: ≥99.0%
Water: ≤0.50%
Protocatechuic aldehyde has anti-inflammatory and coronary blood flow increasing effects. It is an active ingredient in angina pallidum and is one of the main active ingredients in the treatment of nephritis. Also used in perfume synthesis.
Protocatechuic aldehyde can be used as a precursor in the vanillin synthesis by biotransformation by cell cultures of Capsicum frutescens, a type of Chili pepper. It is also found in the mushroom Phellinus linteus.
Protocatechualdehyde (Catechaldehyde), a natural polyphenol compound isolated from the roots of radix Salviae Miltiorrhizae, is associated with a wide variety of biological activities and has been widely used in medicine as an antioxidant, anti-aging, an antibacterial and anti-inflammatory agent.
Package: 25kg/drum, can also be designed according to customer requirements.
Storage: Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

We provide our customers with friendly, professional service and reliable, high performance products that have been manufactured according to an accredited quality management system ISO 9001:2015.Has a first-class R & D team, rich experience in custom compound synthesis, good at synthesis of organic compounds such as chiral, heterocyclic, benzene rings.Our team has 20 years of R&D, production and management experience and concepts, and domestic and foreign market experience.Our company is engaged in the production and custom synthesis of intermediates such as APIs and special chemicals. Relying on our own strong R&D capabilities, we accept custom synthesis of advanced pharmaceutical intermediates, as well as custom synthesis of other types of advanced chemicals, with mature R&D systems and production capacities from gram to tonnage.Our goal is to deliver products that meet our high standards and exceed your expectations, on time, every time.

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Laboratory in Ningbo
Our company's R&D company, Ningbo Gino Chemical Co., Ltd. was established in December 2011. we have several fume hoods and kilogram laboratory, and have purchased 20L, 50L reactors and as a preliminary pilot manufacturing of the products. At the same time, We mobilized external resources to establish a pilot facility in Henan Zhumadian and Anhui Anqing, and cooperating with Shandong Zibo and Jiangsu Changzhou factories as a large production facility for our products.

Factory in Shanxi Province
At the end of 2017, We invested workshop in Xinjiang County Longzhou Chemical Co., Ltd., Xinjiang County Coal Mine Park, Yuncheng, Shanxi. The first phase of the reactors were 30* 2000L~5000L, The contract output value is 50 million annually, factory has passed the audit from public listed company domestic and abroad.

Factory in Shandong Province
The production base of liquid rectification chemical products located in Liaocheng, Shandong Province is the main outsourcing production base of our company. The products are sold to leading enterprises and listed companies in the carcass industry for many years. The production, quality and service are stable, delivery is timely, and some individual products are covering 90% of the market.

Factory in Henan Province
In year 2020, We invested workshop in Henan province, the workshop consists of 50*2000L~5000L reactors, The types of reactions that can be manufacturer there are: bromination, cyanidation, and conventional reactions.

Disclaimer: Certain products are for research use only. Not for diagnostic or therapeutic use. Not for human use. INNOPHARMCHEM does not sell to individuals. INNOPHARMCHEM does not warrant that the use or sale of the products delivered under will not infringe the claims of any China or other patents covering the product itself or the use thereof in combination with other products or the operation of any process.