(R, S) -Equol (4',7-Isoflavandiol, CAS 94105-90-5), >99%

LC Laboratories' Product Number E-5880 - (R,S)-Equol (4',7-Isoflavandiol), >99% - for research use only. Urinary metabolite of daidzein, produced by humans and horses. This product is a racemic mixture of the R- and S-enantiomers. However, the naturally-occurring form of equol from horse urine consists of a single stereoisomer, namely the S-isomer. While the chemical properties of the S-isomer are essentially identical to those of the racemic mixture (except for rotation of plane polarized light, melting point, and so on), the biological properties of the naturally-occurring S-isomer are quite likely to be somewhat different from those of the racemic mixture. The CAS number of our racemic Equol product is 94105-90-5. The CAS number of the naturally-occurring S-isomer is 531-95-3. Another CAS number previously assigned to (R,S)-Equol, namely 66036-38-2, has been deleted by CAS and is no longer in use.

• Supplier: LC Laboratories
• Product #: E-5880
• Sku #: E-5880_5g