The concentration of this product ranges from 0.40 - 0.60 M in THF. The exact concentration is listed on the lot-specific Certificate of Analysis. Please see the sample Certificate of Analysis: https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/687952-50ML0000235108.pdf
Please see the link below to the SDS which lists each component in Section 3:
https://www.sigmaaldrich.com/sds/aldrich/687952