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21014-77-7

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21014-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21014-77-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,1 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21014-77:
(7*2)+(6*1)+(5*0)+(4*1)+(3*4)+(2*7)+(1*7)=57
57 % 10 = 7
So 21014-77-7 is a valid CAS Registry Number.

21014-77-7Upstream product

21014-77-7Downstream Products

21014-77-7Relevant articles and documents

SYNTHESIS OF 1,2-CYCLOALKANEDIOLS BY INTRAMOLECULAR TITANIUM-INDUCED PINACOL COUPLING

McMurry, John E.,Rico, Joseph G.

, p. 1169 - 1172 (2007/10/02)

Seven representative 1,2-cycloalkanediols of ring size 6-14 were prepared in high yield by titanium-induced pinacol coupling of dialdehydes.Cis stereochemistry predominated in six- and eight-membered rings, but trans products were formed in ring sizes ten and above.

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