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3-(2-tetrahydropyranyloxy)-1,3,5(10)estratrien-17β-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21231-98-1

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21231-98-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21231-98-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,3 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21231-98:
(7*2)+(6*1)+(5*2)+(4*3)+(3*1)+(2*9)+(1*8)=71
71 % 10 = 1
So 21231-98-1 is a valid CAS Registry Number.

21231-98-1Downstream Products

21231-98-1Relevant articles and documents

SYNTHESIS OF 2-PROPYNYL ETHERS OF STEROID ALCOHOLS

Pouzar, Vladimir,Schneiderova, Lenka,Drasar, Pavel,Strouf, Oldrich,Havel, Miroslav

, p. 1888 - 1902 (2007/10/02)

2-Propynyl ethers, derived from steroid alcohols with hydroxyl in position 3β, 17 or 20, were prepared by reaction with propargyl bromide and sodium hydroxide under conditions of phase transfer catalysis.Other hydroxy groups in the steroid molecule were protected with the methoxymethyl or 2-tetrahydropyranyl group.

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