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187655-81-8

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187655-81-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187655-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,6,5 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 187655-81:
(8*1)+(7*8)+(6*7)+(5*6)+(4*5)+(3*5)+(2*8)+(1*1)=188
188 % 10 = 8
So 187655-81-8 is a valid CAS Registry Number.

187655-81-8Relevant articles and documents

Synthesis of highly functionalised spiro-indoles by a halogen atom transfer radical cyclization

Stevens, Christian V.,Van Meenen, Ellen,Eeckhout, Yves,Vanderhoydonck, Bart,Hooghe, Wim

, p. 4827 - 4829 (2008/01/27)

The halogen atom transfer radical cyclization (HATRC) has been evaluated on N-(indolylmethyl)trichloroacetamides under Cu(I)Cl catalysis using nitrogen containing ligands. The ring closure leads to the formation of 3,3-spiro-3H-indoles in moderate to good

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