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833488-26-9

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833488-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 833488-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,3,4,8 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 833488-26:
(8*8)+(7*3)+(6*3)+(5*4)+(4*8)+(3*8)+(2*2)+(1*6)=189
189 % 10 = 9
So 833488-26-9 is a valid CAS Registry Number.

833488-26-9Downstream Products

833488-26-9Relevant articles and documents

Base-catalysed cyclocondensation of α,α′- bis(arylmethylene)cyclohexanones with thiourea: Formation of E-8-(arylmethylene)-4-aryl-1,2,3,4,5,6,7,8-octahydrobenzo[d]pyrimidine-2-thiones

Pal, Rammohan,Mandai, Tapas K.,Mallik, Asok K.

experimental part, p. 402 - 405 (2010/06/16)

Base-catalysed cyclocondensation of α,α′- bis(arylmethylene)cyclohexanones with thiourea has been found to generate E-8-(arylmethylene)-4-aryl-1,2,3,4,5,6,7,8-octahydrobenzo[d]pyrimidine-2- thiones in high yield, the structures of which have been established from their spectral data. However, corresponding cyclopentanones were found to be unreactive under similar reaction condition.

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