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658704-24-6

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658704-24-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 658704-24-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,8,7,0 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 658704-24:
(8*6)+(7*5)+(6*8)+(5*7)+(4*0)+(3*4)+(2*2)+(1*4)=186
186 % 10 = 6
So 658704-24-6 is a valid CAS Registry Number.

658704-24-6Relevant articles and documents

Synthesis and binding affinities of fluoroalkylated raloxifenes

Lee, Kyo Chul,Moon, Byung Seok,Lee, Jae Hak,Chung, Kyoo-Hyun,Katzenellenbogen, John A.,Chi, Dae Yoon

, p. 3649 - 3658 (2007/10/03)

Three fluoroalkylated derivatives (1-3) of the selective estrogen receptor modulator (SERM), raloxifene, have been synthesized. The key step in the synthesis is the C-C bond formation of benzo[b]thiophene and a substituted phenyl group (ring C) using a Stille reaction. The in vitro binding affinities of the substituted raloxifenes 1-3 are 45, 60, 89%, respectively, relative to the affinity of estradiol, which is higher than the affinity of raloxifene itself (25%). When labeled with the positron-emitting radionuclide, these compounds might be useful as PET imaging agents for estrogen receptor-positive breast tumors.

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