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4244-03-5

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4244-03-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4244-03-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,4 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4244-03:
(6*4)+(5*2)+(4*4)+(3*4)+(2*0)+(1*3)=65
65 % 10 = 5
So 4244-03-5 is a valid CAS Registry Number.

4244-03-5Downstream Products

4244-03-5Relevant articles and documents

Synthesis of 13-alkyl-gon-4-ones

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, (2008/06/13)

The preparation of 13-methylgon-4-enes and novel 13-polycarbonalkylgon-4-enes by a new total synthesis is described. 13-Alkylgon-4-enes having progestational, anabolic and androgenic activities are prepared by forming a tetracylic gonane structure unsaturated in the 1,3,5(10),9(11) and 14-positions, selectively reducing in the B- and C-rings, and converting the aromatic A-ring compounds so-produced to gon-4-enes by Birch reduction and hydrolysis.

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