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89101-41-7

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89101-41-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89101-41-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,0 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89101-41:
(7*8)+(6*9)+(5*1)+(4*0)+(3*1)+(2*4)+(1*1)=127
127 % 10 = 7
So 89101-41-7 is a valid CAS Registry Number.

89101-41-7Downstream Products

89101-41-7Relevant articles and documents

Reductive Cleavage of the 9,10-Bond in 11-Oxygenated Steroids: a New Method for the Partial Synthesis of the Vitamin D Skeleton

Ananthanarayan, T. P.,Magnus, Philip,Norman, Anthony W.

, p. 1096 - 1098 (2007/10/02)

11-Oxygenated steroids with a ring A dienone system are reduced in non-protic media with cleavage of the 9,10-bond, and the resulting 9,10-secosteroids (2) or (5) were converted into 9,10-secocholesta-1,3,5(10)-triene-3-ol (12), an unknown isomer of cholecalciferol (vitamin D3).

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