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1259-22-9

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1259-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1259-22-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,5 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1259-22:
(6*1)+(5*2)+(4*5)+(3*9)+(2*2)+(1*2)=69
69 % 10 = 9
So 1259-22-9 is a valid CAS Registry Number.

1259-22-9Relevant articles and documents

Synthesis of novel 17-triazolyl-androst-5-en-3-ol epimers via Cu(I)-catalyzed azide-alkyne cycloaddition and their inhibitory effect on 17α-hydroxylase/C17,20-lyase

Kiss, Anita,Herman, Bianka Edina,G?rbe, Tamás,Mernyák, Erzsébet,Molnár, Barnabás,W?lfling, János,Szécsi, Mihály,Schneider, Gyula

, p. 79 - 91 (2018/05/25)

The regioselective Cu(I)-catalyzed 1,3-dipolar cycloaddition of 17α- and 17β-azidoandrost-5-en-3β-ol epimers (3b and 5b) with different terminal alkynes afforded novel 1,4-substituted triazolyl derivatives (8a–k and 9a–k). For the preparation of 5′-iodo-1

Steroids. XXVII. Neighbouring group participation. IV. Preparation of 16α-hydroxymethylandrost-5-ene-3β,17α-diol

Schneider Gy.,Vincze,Vass,et al.

, p. 71 - 82 (2007/10/02)

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