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80957-85-3

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80957-85-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80957-85-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,5 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 80957-85:
(7*8)+(6*0)+(5*9)+(4*5)+(3*7)+(2*8)+(1*5)=163
163 % 10 = 3
So 80957-85-3 is a valid CAS Registry Number.

80957-85-3Downstream Products

80957-85-3Relevant articles and documents

New Insights on the Reaction of Alkyl 3-Oxo-4-(triphenylphosphoranylidene)butanoate and Aldehydes under Concentrated Condensation Conditions. One-Pot Synthesis of Highly functionalised 6-Oxocyclohex-4-ene-1,3-dicarboxylates

Moorhoff, Cornelis M.,Schneider, David F.,Winkler, Dave

, p. 3461 - 3483 (2007/10/03)

New annulation methodologies for the construction of substituted cyclohex-2-enones are important in organic synthesis. In this paper wee describe a new one-pot synthesis of substituted cyclohexenonedicarboxylates in maximum yield of 52 percent from the condensation of alkyl 3-oxo-4-(triphenylphosphoranylidene)-butanoate 1 and aldehydes.

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