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82724-72-9

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82724-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82724-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,7,2 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 82724-72:
(7*8)+(6*2)+(5*7)+(4*2)+(3*4)+(2*7)+(1*2)=139
139 % 10 = 9
So 82724-72-9 is a valid CAS Registry Number.

82724-72-9Relevant articles and documents

CHEMISTRY OF ENOL ETHERS. LVI. CONDENSATION OF THE ACETALS OF AROMATIC ALDEHYDES WITH 1-ETHOXY-1,3-BUTADIENE. SYNTHESIS OF ARYLPOLYENE ALDEHYDES

Makin, S. M.,Shavrygina, O. A.,Dobretsova, E. K.,Ermakova, G. A.,Dymshakova, G. M.

, p. 651 - 656 (2007/10/02)

The condensation of a series of acetals of aromatic aldehydes (benzaldehyde, 4-methoxy and 3,4-dimethoxybenzaldehyde) with 1-ethoxy-1,3-butadiene was investigated.Successful realization of the reaction requires the presence of electron-donating goups in t

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