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54921-97-0

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54921-97-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54921-97-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,2 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54921-97:
(7*5)+(6*4)+(5*9)+(4*2)+(3*1)+(2*9)+(1*7)=140
140 % 10 = 0
So 54921-97-0 is a valid CAS Registry Number.

54921-97-0Downstream Products

54921-97-0Relevant articles and documents

Niobium Pentachloride Mediated (Hetero)aromatic Aldehyde Friedel-Crafts Hydroxyalkylation with Arenes: An Efficient Strategy to Synthesize Triarylmethanes

Baviera, Giovanni S.,Donate, Paulo M.,Matias, Alexandre A.,Previdi, Daniel,Rodrigues, Shirley M. M.

, p. 4498 - 4506 (2019/11/21)

Niobium pentachloride is an efficient and useful Lewis acid to conduct Friedel-Crafts hydroxyalkylation between arenes and (hetero)aromatic aldehydes, to generate triarylmethanes. This practical methodology offers several advantages, such as short reaction time, mild experimental conditions, and excellent yields.

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