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721922-85-6

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721922-85-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 721922-85-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,9,2 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 721922-85:
(8*7)+(7*2)+(6*1)+(5*9)+(4*2)+(3*2)+(2*8)+(1*5)=156
156 % 10 = 6
So 721922-85-6 is a valid CAS Registry Number.

721922-85-6Upstream product

721922-85-6Relevant articles and documents

A square cyclic porphyrin dodecamer: Synthesis and single-molecule characterization

Kato, Aiko,Sugiura, Ken-Ichi,Miyasaka, Hitoshi,Tanaka, Hiroyuki,Kawai, Tomoji,Sugimoto, Manabu,Yamashita, Masahiro

, p. 578 - 579 (2007/10/03)

We prepared a square cyclic porphyrin dodecamer via the tetramerization of a trimer shaped like a right angle. The molecule was visualized by scanning tunneling microscopy to be square.

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