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3β-acetoxy-5α-cholest-8(14)-en-7-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21152-11-4

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21152-11-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21152-11-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,5 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21152-11:
(7*2)+(6*1)+(5*1)+(4*5)+(3*2)+(2*1)+(1*1)=54
54 % 10 = 4
So 21152-11-4 is a valid CAS Registry Number.

21152-11-4Relevant academic research and scientific papers

SYNTHESIS OF POTENTIAL ECDYSTEROID PRECURSORS FROM Δ7,22 STEROLS

Hedtmann, Udo,Hobert, Kurt,Milkova, Tsenka,Welzel, Peter

, p. 1941 - 1952 (2007/10/02)

Two routes for the conversion of 5α-cholest-7-ene-3β-ol (11) into 7, which has the typical ecdysteroid substitution pattern in rings B, C, and D, have been developed.Making use of one of the methods, 5,6-dihydroergosterol (31) was converted into the 38, p

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