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252987-07-8

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252987-07-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 252987-07-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,9,8 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 252987-07:
(8*2)+(7*5)+(6*2)+(5*9)+(4*8)+(3*7)+(2*0)+(1*7)=168
168 % 10 = 8
So 252987-07-8 is a valid CAS Registry Number.

252987-07-8Relevant articles and documents

Transformation of vitamin B6 to (+)-deoxypyridinoline, a useful biochemical marker for diagnosis of bone diseases

Adamczyk, MacIej,Akireddy, Srinivasa Rao,Reddy, Rajarathnam E.

, p. 2379 - 2390 (2007/10/03)

A versatile chiral synthesis of the cross-link (+)-deoxypyridinoline (Dpd, 2) was achieved starting from vitamin B6 (7). The key steps in the synthesis of (+)-2 are transformation of B6 (7) to the chloride (3d) and construction of three α-amino acid chains by utilizing (R)-(-)-Schollkopf's reagent (4), Wittig reagent (R)-(-)-5, and iodide (5)-(-)-6. (+)-Dpd (2) is a degradation product of bone collagen and has been found to be a useful marker for diagnosis of osteoporosis and other metabolic bone diseases. (C) 2000 Elsevier Science Ltd.

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