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18389-13-4

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18389-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18389-13-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,8 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18389-13:
(7*1)+(6*8)+(5*3)+(4*8)+(3*9)+(2*1)+(1*3)=134
134 % 10 = 4
So 18389-13-4 is a valid CAS Registry Number.

18389-13-4Downstream Products

18389-13-4Relevant articles and documents

Reaction of steroidal epoxides with thioglycolic acid

Shafiullah,Jamaluddin, Malik,Siddiqui, Ishrat H,Ogura, H,Takayanagi, H

, p. 700 - 701 (2007/10/02)

Reaction of 5,6α-epoxy-5α-cholestane (1), its 3β-chloro (2), 3β-acetoxy (3) and 3β-hydroxy (4) analogues with thioglycolic acid affords hydroxy formates (5-8) along with the diols (9-12).The structures of these products have been established on the basis of their analytical and spectral data.The structure of compound 6 was further supported by its X-ray analysis.

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