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103056-66-2

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103056-66-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103056-66-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,0,5 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 103056-66:
(8*1)+(7*0)+(6*3)+(5*0)+(4*5)+(3*6)+(2*6)+(1*6)=82
82 % 10 = 2
So 103056-66-2 is a valid CAS Registry Number.

103056-66-2Relevant articles and documents

A NEW SYNTHESIS OF 4-METHOXY-CYCLOPENT-2-EN-1-ONES

Scettri, Arrigo

, p. 5141 - 5144 (1985)

4-methoxy-cyclopent-2-en-1-ones 6 are easily obtained through a simple procedure involving in the key-step the conversion of 2-furylcarbinols 1 into 1,1,2-trimethoxy-alkan-4-ones 3, a masked form of 1,4-dicarbonil compounds, by treatment with Amberlyst H15 in methanolic solution.Then, the regeneration of the aldehydic function and a base-catalysed aldolic condensation lead in high yields to the finalproducts 6.

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