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87921-28-6

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87921-28-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87921-28-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,2 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87921-28:
(7*8)+(6*7)+(5*9)+(4*2)+(3*1)+(2*2)+(1*8)=166
166 % 10 = 6
So 87921-28-6 is a valid CAS Registry Number.

87921-28-6Downstream Products

87921-28-6Relevant articles and documents

Enamines of 2,2-bis(ethylthio)ethanal: a convenient route to γ-keto crotonate derivatives

Bates, Gordon S.,Ramaswamy, S.

, p. 2466 - 2475 (2007/10/02)

A new α-oxoaldehyde reagent, 2,2-bis(ethylthio)ethanal 1, has been prepared in high yield from ethanedial.Alkylation of the potassium salt of the enamines of 1 with various alkylating agents followed by in situ hydrolysis of the intermediate imine afforded high yields of the alkylation products of 1.This new reagent was used in the synthesis of a chiral potential precursor of the macrocyclic fragment of cytochalasins A,B, and F, as well as in the syntheses of the physiologically active diolides pyrenophorin and norpyrenophorin.

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