Protocatechuic acid, 98%

Name: Protocatechuic acid, 98%
Brand: Vaqora Chemicals
SKU: VQ-008583

About Protocatechuic acid, 98%

Listed under CAS 99-50-3, Protocatechuic acid is a carboxylic acid available from Vaqora Chemicals (Synthesis grade) with a typical assay of 98%. With the molecular formula C7H6O4, it has a molar mass of 154.12 g/mol. Its systematic (IUPAC) name is 3,4-dihydroxybenzoic acid. Common synonyms include 4-Carboxy-1,2-dihydroxybenzene and Protocatehuic acid.

It is supplied as powder or crystals. Reported physical data include a melting point of 197-200 °C and a density of 1.6 g/cm3 (Predicted). Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for pharmaceutical synthesis, fine chemical synthesis and dyes and pigments manufacture. Our customers for this product work in pharmaceutical manufacturing, academic and industrial research and textiles and dyeing.

Vaqora Chemicals supplies Protocatechuic acid in 10 g, 25 g, 100 g and 500 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Pharmaceutical synthesis
Fine chemical synthesis
Dyes & pigments manufacture

Industries

Specifications & identifiers

Chemical identifiers
Product name	Protocatechuic acid, 98%
Catalogue No.	VQ-008583
CAS Number	99-50-3
IUPAC name	3,4-dihydroxybenzoic acid
Molecular formula	C₇H₆O₄
Molecular weight	154.12 g/mol
Exact mass	154.0266
Grade	Synthesis
Purity / assay	98%
HSN code	29182990
InChIKey	YQUVCSBJEUQKSH-UHFFFAOYSA-N
SMILES	C1=CC(=C(C=C1C(=O)O)O)O
PubChem CID	72

Physical properties
Physical form	Crystalline
Appearance	Powder or crystals
Melting point	197-200 °C
Density	1.6 g/cm3 (Predicted)
LogP (XLogP3)	1.1
H-bond donors / acceptors	3 / 4
TPSA	77.8 Å²
Synonyms	4-Carboxy-1,2-dihydroxybenzene, Protocatehuic acid, 4,5-Dihydroxybenzoic acid, protocatechuate, Benzoic acid, 3,4-dihydroxy-, 3,4-Dihydroxy Benzoic Acid, Carbohydroquinonic acid, 3,4-dihydroxy-benzoic acid, Catechol-4-carboxylic Acid, 1ykp, 3, 4-Dihydroxybenzoic acid, b-Resorcylate

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Protocatechuic acid, 98%?

The CAS Registry Number of Protocatechuic acid, 98% is 99-50-3. It is also known as 4-Carboxy-1,2-dihydroxybenzene, Protocatehuic acid, 4,5-Dihydroxybenzoic acid.

What is the molecular formula and molecular weight of Protocatechuic acid, 98%?

Protocatechuic acid, 98% has the molecular formula C7H6O4 and a molecular weight of 154.12 g/mol. Its IUPAC name is 3,4-dihydroxybenzoic acid.

Which grade and pack sizes of Protocatechuic acid, 98% can I order?

We supply Protocatechuic acid, 98% in Synthesis (98%) grade, in 10 g, 25 g, 100 g, 500 g, 5 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Protocatechuic acid, 98%?

Yes. Every lot of Protocatechuic acid, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Protocatechuic acid, 98% be shipped internationally?

Yes. Protocatechuic acid, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.