507232-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 507232-65-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,7,2,3 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 507232-65:
(8*5)+(7*0)+(6*7)+(5*2)+(4*3)+(3*2)+(2*6)+(1*5)=127
127 % 10 = 7
So 507232-65-7 is a valid CAS Registry Number.
507232-65-7Relevant academic research and scientific papers
Synthesis of a-ring synthon of 19-nor-1alpha,25-dihydroxyvitamin D3 from (D)-glucose
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Page 10, (2010/02/07)
The present invention provides a method for the synthesis of an A-ring synthon phosphine oxide used in the preparation of 19-nor vitamin D compounds, and to novel synthetic intermediates formed during the synthesis. The new method prepares the phosphine oxide from (D)-glucose.
