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21791-95-7

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21791-95-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21791-95-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,9 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21791-95:
(7*2)+(6*1)+(5*7)+(4*9)+(3*1)+(2*9)+(1*5)=117
117 % 10 = 7
So 21791-95-7 is a valid CAS Registry Number.

21791-95-7Downstream Products

21791-95-7Relevant articles and documents

A concise ex chiral pool approach to novel bidentate camphane phosphane ligands

Sell,Laschat,Dix,Jones

, p. 4118 - 4124 (2007/10/03)

The bidentate hydroxy phosphane 20 and the phosphane phosphinite 21, each bearing a camphane skeleton, were prepared in five and six steps (52% and 28% yield), respectively, from (1S)-(+)-camphorsulfonic acid 8 via the triethylsilyl-protected iodide 17 as a key intermediate. An X-ray crystal structure was obtained for 21.

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