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77825-92-4

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77825-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77825-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,2 and 5 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77825-92:
(7*7)+(6*7)+(5*8)+(4*2)+(3*5)+(2*9)+(1*2)=174
174 % 10 = 4
So 77825-92-4 is a valid CAS Registry Number.

77825-92-4Downstream Products

77825-92-4Relevant academic research and scientific papers

15-Oxygenated Sterols by m-Chloroperbenzoic Acid Oxidation of 3β-Acetoxy-5α-cholesta-8,14-diene

Anastasia, Mario,Allevi, Pietro,Fiecchi, Alberto,Scala, Antonio

, p. 3265 - 3267 (1981)

The epoxidation of 3β-acetoxy-5α-cholesta-8,14-diene with 1 molar equiv of m-chloroperbenzoic acid has been found useful for the synthesis of 15-oxygenated sterols.The major product of the reaction, 3β-acetoxy-14α,15α-epoxy-5α-cholest-8-ene, is decomposed on silica to a (1:1) mixture of 3β-acetoxy-5α-cholesta-8(14),9(11)-dien-15α-ol and 3β-acetoxy-5α-cholest-8(14)-ene-9α,15α-diol.The minor product obtained in the epoxidation is 3β-acetoxy-8α,9α-epoxy-5α-cholest-14-ene.

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