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67521-22-6

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67521-22-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67521-22-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,5,2 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 67521-22:
(7*6)+(6*7)+(5*5)+(4*2)+(3*1)+(2*2)+(1*2)=126
126 % 10 = 6
So 67521-22-6 is a valid CAS Registry Number.

67521-22-6Relevant articles and documents

NOVEL COMPOUND For Organic light emitting diode AND COATING COMPOSITION FOR ORGANIC LAYER COMPRISING THE SAME

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Paragraph 0137; 0138; 0141; 0142, (2020/12/29)

Provided are a compound represented by chemical formula (1) and a coating liquid composition comprising the same. The above formula (1) is as described in the description of the invention.

Synthesis of pyridinocrownophanes exhibiting high Ag+-affinity

Inokuma, Seiichi,Kimura, Koichi,Funaki, Takashi,Nishimura, Jun

, p. 123 - 130 (2007/10/03)

Crownophanes possessing a pyridine moiety were prepared by means of intramolecular [2 + 2] photocycloaddition of the styrene derivatives. The crown compounds having six to ten ethereal oxygens selectively extracted Ag+ with high efficiency in the liquid-liquid extraction. The high extractability and efficiency were maintained even at low pH region of the extraction system. From ESI-MS analysis, it was found that the crownophanes formed some kinds of complexes having 1:1 and 2:1 stoichiometry (host/guest) with Ag+ and Pb2+ in MeCN-H2O homogeneous system.

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