83509-38-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83509-38-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,0 and 9 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 83509-38:
(7*8)+(6*3)+(5*5)+(4*0)+(3*9)+(2*3)+(1*8)=140
140 % 10 = 0
So 83509-38-0 is a valid CAS Registry Number.
83509-38-0Relevant articles and documents
17β-ethynylsteroids and process for preparing same
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, (2008/06/13)
This is disclosed novel intermediates, i.e. 17β-ethynylsteroids, which are useful for the preparation of corticoids such as hydrocortisone and prednisolone, and a process for preparing the same.