Monuo Chemical supplies (-)-Epicatechin gallate(ECG) (CAS 1257-08-5) as a Plant extracts raw material for botanical ingredient purchasing. Related catalog names include [(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl] 3,4,5-trihydroxyben, . Specify CAS 1257-08-5 on RFQs so the lot can be matched to the COA.
Key Specifications at a Glance
| Product Name | (-)-Epicatechin gallate(ECG) |
|---|---|
| CAS Number | 1257-08-5 |
| Molecular Formula | C22H18O10 |
| Molecular Weight | 442.376 g/mol |
| Purity / Specification | 98% |
| Category | Plant extracts |
| Documents | COA, TDS, SDS on request |
| Supply Origin | China | Worldwide shipping |
What Is (-)-Epicatechin gallate(ECG)?
(-)-Epicatechin gallate(ECG) (CAS 1257-08-5) is supplied by Monuo Chemical as a plant extract / phytochemical raw material for botanical ingredient purchasing and research supply. It is listed in Plant extracts.
Molecular formula C22H18O10; molecular weight about 442.376 g/mol. Always match CAS 1257-08-5 on the batch COA.
Finished-product claims, labeling and local regulatory filings remain the brand manufacturer’s responsibility. Monuo Chemical provides batch COA / SDS support for purchasing and laboratory use. Request a Quote for packing and documentation.
Synonyms & Search Names
- (-)-Epicatechin gallate(ECG)
- [(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl] 3,4,5-trihydroxyben
- Epicatechin gallate
- (-)-Epicatechin-3-O-gallate
- L-Epicatechin gallate
- (-)-Epicatechin-3-gall
Applications
In botanical ingredient projects, (-)-Epicatechin gallate(ECG) is commonly used for:
- Botanical raw-material evaluation and vendor qualification
- Natural-product assay and reference use (confirm COA assay)
- Formulation screening where a defined CAS is required
- Procurement of phytochemical grades for laboratory projects
Compare related botanicals such as Tetrahydrocurcumin (CAS 36062-04-1) in the same Plant extracts range.
Handling & Use Notes
- Assay check: Confirm specification / HPLC assay for (-)-Epicatechin gallate(ECG) on the batch COA before use.
- Container handling: Keep sealed and dry; protect from unnecessary light and heat during sampling.
- Process fit: Verify solubility and stability in your intended solvent or matrix before scale-up.
- Safety: Follow the SDS for storage, PPE and waste handling.
Need assay or packing discussion? Email [email protected] or use the contact form.
Packaging, Storage & Logistics
| Standard Pack Sizes | 50 g / 100 g bottles; 500 g / 1 kg packs (custom packing available) |
|---|---|
| Storage | Keep sealed, dry and protected from light and heat. Follow the batch COA and SDS. |
| Shelf Life | Confirm shelf life on the COA for each lot. |
| MOQ | Commercial MOQ discussed per project (often from 100 g); larger packs available on request |
| Lead Time | Stock items often ship promptly; custom pack / large lots typically 7–14 working days |
Quality & Documentation
For (-)-Epicatechin gallate(ECG) (CAS 1257-08-5), Monuo Chemical can provide:
- Certificate of Analysis (COA)
- Technical Data Sheet (TDS) and Safety Data Sheet (SDS)
- CAS / product-name confirmation for your purchase file
- Flexible packing from grams to kilograms
- FOB / CIF / DAP terms as agreed
Our team aims to return technical data and quotations within 24 hours. See also Plant extracts.
Request a Quote
Share your target assay, pack size and destination. We will confirm availability and documentation for (-)-Epicatechin gallate(ECG) CAS 1257-08-5.
Request a Quote | Email: [email protected]
Frequently Asked Questions
How do I request a quotation for CAS 1257-08-5?
Share target assay, pack size and destination via the Request a Quote page or email [email protected]. We aim to reply within 24 hours.
What packing sizes are available for (-)-Epicatechin gallate(ECG)?
Standard discussion starts from 100 g bottles, with 500 g / 1 kg packs and custom packing on request. Confirm pack size when you request a quote.
What should be checked before scale-up of (-)-Epicatechin gallate(ECG)?
Verify solubility and stability in your intended solvent or matrix, and re-check the lot assay on the COA before process scale-up.
Can packing for (-)-Epicatechin gallate(ECG) be customized?
Yes. Gram-to-kilogram packing can be discussed. Start from 100 g commercial packs unless another size is agreed for the project.
Do you ship (-)-Epicatechin gallate(ECG) worldwide?
Yes. Monuo Chemical ships worldwide under agreed Incoterms (FOB / CIF / DAP as agreed). Lead time depends on stock and packaging.
Can (-)-Epicatechin gallate(ECG) be used as an analytical reference material?
Buyers often source CAS 1257-08-5 for natural-product screening and assay work. Confirm the required assay on the COA before method use.
Is (-)-Epicatechin gallate(ECG) a finished consumer product?
No. (-)-Epicatechin gallate(ECG) is supplied as a botanical / phytochemical raw material for purchasing and laboratory use. Labeling of finished goods is the customer’s responsibility.
Which related Plant extracts can I review with (-)-Epicatechin gallate(ECG)?
You may also review Tetrahydrocurcumin (CAS 36062-04-1) and Paclitaxel (CAS 33069-62-4), or open the full Plant extracts catalog.
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Disclaimer: Information is for plant-extract raw-material identification and technical reference. Finished-product claims and regulatory filings remain the customer’s responsibility. Verify each lot against the supplied COA and SDS.





