Cas 89816-43-3,2,2-bis-(piperidinoethylthiomethyl)-1-phenylethan-1-one

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Check Digit Verification of cas no

The CAS Registry Mumber 89816-43-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,1 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89816-43:
(7*8)+(6*9)+(5*8)+(4*1)+(3*6)+(2*4)+(1*3)=183
183 % 10 = 3
So 89816-43-3 is a valid CAS Registry Number.

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89816-43-3Relevant articles and documents

THIOALKYLATION. IX. CONDENSATION OF KETONES WITH FORMALDEHYDE AND N-(2-MERCAPTOETHYL)AMINES

Dronov, V. I.,Nigmatullina, R. F.,Vasil'eva, E. V.,Nikitin, Yu. E.

, p. 1008 - 1011 (2007/10/02)

The condensation of ketones with formaldehyde and N-(2-mercaptoethyl)amines in the presence of alkali in a water-alcohol medium at 20-50 deg C with the initial reagents in the various ratios gave mono-, bis-, and tetrakis(alkylaminoethylthiomethyl)substit

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89816-43-3