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161690-52-4

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161690-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161690-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,6,9 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 161690-52:
(8*1)+(7*6)+(6*1)+(5*6)+(4*9)+(3*0)+(2*5)+(1*2)=134
134 % 10 = 4
So 161690-52-4 is a valid CAS Registry Number.

161690-52-4Downstream Products

161690-52-4Relevant articles and documents

SYNTHESIS OF THIACROWNOPHANES EXHIBITING HIGH Ag+ SELECTIVITIES ON THE LIQUID-LIQUID EXTRACTION

Inokuma, Seiichi,Kobayashi, Atsushi,Katoh, Reiko,Yasuda, Toshiaki,Nishimura, Jun

, p. 401 - 412 (2007/10/02)

Thiacrownophanes (6-8) wewre prepared by means of intramolecular photocycloaddition.Thiacrownophane (6) with two sulfur and three oxygen atoms showed the most efficient extractability toward Ag+ with high selectivity even if the extraction system did not contain any special lipophilic counter anion.

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