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100979-81-5

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100979-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100979-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,9,7 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100979-81:
(8*1)+(7*0)+(6*0)+(5*9)+(4*7)+(3*9)+(2*8)+(1*1)=125
125 % 10 = 5
So 100979-81-5 is a valid CAS Registry Number.

100979-81-5Upstream product

100979-81-5Downstream Products

100979-81-5Relevant articles and documents

THE OXIDATION OF PROGESTERONE UNDER GoAggIII CONDITIONS

Barton, Derek H. R.,Doller, Dario

, p. 984 - 990 (2007/10/02)

The oxidation of pregn-4-ene-3,20-dione (progesterone) by the GoAggIII system (aqueous hydrogen peroxide, ferric chloride, picolinic acid in pyridine-acetic acid solution) has been investigated.Two tri-keto derivatives were isolated and identified as pregn-4-ene-3,6,20-trione and pregn-4-ene-3,12,20-trione.The third major product isolated was identified as the unstable 5α-formyl-A-nor-pregnane-3,20-dione, which deformylated spontaneously to A-nor-5β-pregnane-3,20-dione.A mechanism for the A-ring contraction is proposed, based upon the participation of a carbon-Fe(V) intermediate.

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