GB-1a structure

GB-1a

TL;DR: GB-1a (CAS 19456-83-8) is a chemical compound with molecular formula C30H22O10 and molecular weight 542.12 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(2S)-8-[(2S,3R)-5,7-dihydroxy-2-(4-hydroxyphenyl)-4-oxo-2,3-dihydrochromen-3-yl]-5,7-dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydrochromen-4-one

Also Known As: GB-1a, GB-1b, Biflavanone GB-1a, GB 1b, GB 1a

CAS: 19456-83-8
Molecular Formula C30H22O10
Molecular Weight 542.12 g/mol
LogP 4.6
Topological Polar Surface Area 174.0 Ų
Hydrogen Bond Donors 6
Hydrogen Bond Acceptors 10
Rotatable Bonds 3
Exact Mass 542.1213
Heavy Atoms 40
Complexity 927.0

Chemical Identifiers

CAS Number 19456-83-8
SMILES C1[C@H](OC2=C(C(=CC(=C2C1=O)O)O)[C@@H]3[C@H](OC4=CC(=CC(=C4C3=O)O)O)C5=CC=C(C=C5)O)C6=CC=C(C=C6)O
InChIKey MXEIKUWMKSYEII-DETITRACSA-N

Patent-Derived Application Labels

Derived from 1 IPC patent classification(s) across the SureChEMBL global patent database.

Pharmaceutical Intermediates (1 patents)

Product Overview

GB-1a (CAS 19456-83-8), with molecular formula C30H22O10 and molecular weight 542.12 g/mol. IUPAC: (2S)-8-[(2S,3R)-5,7-dihydroxy-2-(4-hydroxyphenyl)-4-oxo-2,3-dihydrochromen-3-yl]-5,7-dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydrochromen-4-one.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of GB-1a

XLogP
4.6
TPSA (Topological Polar Surface Area)
174.0
Hydrogen Bond Donors
6
Hydrogen Bond Acceptors
10
Rotatable Bonds
3
Heavy Atoms
40
Complexity
927.0
Exact Mass
542.1213
Monoisotopic Mass
542.1213
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of GB-1a

The XLogP value of 4.6 indicates that GB-1a is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 174.0 Ų indicates high polarity, suggesting GB-1a may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, GB-1a has 6 hydrogen bond donor(s) and 10 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of GB-1a?

The CAS number of GB-1a is 19456-83-8.

What is the molecular formula of GB-1a?

The molecular formula of GB-1a is C30H22O10.

What is the molecular weight of GB-1a?

The molecular weight of GB-1a is 542.12 g/mol.

Where can I buy GB-1a?

You can request a quote for GB-1a directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for GB-1a?

Yes, KEHONG BIO provides custom synthesis services for GB-1a and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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