(−)-Catechin, ≥97% (HPLC), from green tea

Name: (−)-Catechin, ≥97% (HPLC), from green tea
Brand: Vaqora Chemicals
SKU: VQ-010110

About (−)-Catechin, ≥97% (HPLC), from green tea

(−)-Catechin (CAS 18829-70-4) is a phenolic building block offered by Vaqora Chemicals with a typical assay of ≥98.0%. Formula C15H14O6, molecular weight 290.27 g/mol. Systematically, it is named (2S,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol. Common synonyms include (−)-trans-3,3′,4′,5,7-Pentahydroxyflavane and (-)-Catechin.

It is supplied as a white to off-white powder. Store it at 2–8 °C, in a tightly closed container. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies (−)-Catechin in 5 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Organic synthesis
API synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	(−)-Catechin, ≥97% (HPLC), from green tea
Catalogue No.	VQ-010110
CAS Number	18829-70-4
IUPAC name	(2S,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
Molecular formula	C₁₅H₁₄O₆
Molecular weight	290.27 g/mol
Exact mass	290.079
Purity / assay	≥98.0%
HSN code	29332990
InChIKey	PFTAWBLQPZVEMU-HIFRSBDPSA-N
SMILES	C1[C@H]([C@@H](OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)O
PubChem CID	73160

Physical properties
Physical form	Powder
Appearance	White to off-white powder
LogP (XLogP3)	0.4
H-bond donors / acceptors	5 / 6
TPSA	110 Å²
Storage	2–8 °C
Synonyms	(−)-trans-3,3′,4′,5,7-Pentahydroxyflavane, (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol, (-)-Catechin, (-)-Catechol, (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol, catechin L-, Catechin l-form, (2S,3R)-2-(3,4-dihydroxyphenyl)chroman-3,5,7-triol, (-)-cianidanol, (2s,3r)-2-(3,4-dihydroxyphenyl)chromane-3,5,7-triol, trans-2-(3,4-Dihydroxyphenyl)chroman-3,5,7-triol, 2H-1-Benzopyran-3,5,7-triol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2S,3R)-

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 (−)-Catechin, ≥97% (HPLC), from green tea?

The CAS Registry Number of (−)-Catechin, ≥97% (HPLC), from green tea is 18829-70-4. It is also known as (−)-trans-3,3′,4′,5,7-Pentahydroxyflavane, (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol, (-)-Catechin.

What is the molecular formula and molecular weight of (−)-Catechin, ≥97% (HPLC), from green tea?

(−)-Catechin, ≥97% (HPLC), from green tea has the molecular formula C15H14O6 and a molecular weight of 290.27 g/mol. Its IUPAC name is (2S,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol.

Which grade and pack sizes of (−)-Catechin, ≥97% (HPLC), from green tea can I order?

We supply (−)-Catechin, ≥97% (HPLC), from green tea in (≥98.0%) grade, in 5 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with (−)-Catechin, ≥97% (HPLC), from green tea?

Yes. Every lot of (−)-Catechin, ≥97% (HPLC), from green tea 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 (−)-Catechin, ≥97% (HPLC), from green tea be shipped internationally?

Yes. (−)-Catechin, ≥97% (HPLC), from green tea 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.

How should (−)-Catechin, ≥97% (HPLC), from green tea be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.