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104525-50-0

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104525-50-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104525-50-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,2 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 104525-50:
(8*1)+(7*0)+(6*4)+(5*5)+(4*2)+(3*5)+(2*5)+(1*0)=90
90 % 10 = 0
So 104525-50-0 is a valid CAS Registry Number.

104525-50-0Relevant articles and documents

The Reaction of 9-(2',3'-Dideoxy-β-D-glycero-pent-2-Enofuranosyl)-adenine Derivatives with Arene- and Alkenesulfenyl Chlorides. An Unusual Ring Opening Reaction of Thiiranium Ions

Welch, C. J.,Bazin, H.,Chattopadhyaya, J.

, p. 343 - 357 (2007/10/02)

A series of arenesulfenyl chlorides and methanesulfenyl chloride were reacted in pyridine solution with 6-N-dibenzoyl-9-(2',3'-dideoxy-β-D-glycero-pent-2-enofuranosyl)adenine (1b).In each case, the relative abundance of isomeric β-chloroarene/alkene sulfides was estimated and used to assess the relative thermodynamic stabilities of the lyxo and ribo thiiranium ion intermediates and their steric susceptibilities to attack by nucleophile (Cl-).Subsequently, the β-chloroarene/alkene sulfides 8a-d to 13 a-d, upon alkaline treatment, underwent an unprecedented ylide-mediated β elimination of the intermediary lyxo and ribo thiiranium ions, to give only 2'-ene-thiol ethers 14-19.

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