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1219042-09-7

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1219042-09-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219042-09-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,0,4 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1219042-09:
(9*1)+(8*2)+(7*1)+(6*9)+(5*0)+(4*4)+(3*2)+(2*0)+(1*9)=117
117 % 10 = 7
So 1219042-09-7 is a valid CAS Registry Number.

1219042-09-7Relevant articles and documents

Host-Guest complexation-triggered chiroptical change of poly(phenylacetylene)s bearing binaphthocrown ether moieties on the main chain

Ryosuke, Sakai,Takafumi, Yonekawa,Issei, Otsuka,Ryohei, Kakuchi,Toshifumi, Satoh,Toyoji, Kakuchi

experimental part, p. 1197 - 1206 (2010/11/18)

Diacetylene monomers with respective lengths of the oxyethylene chains were cyclopolymerized with a rhodium catalyst to produce novel poly(phenylacetylene) s bearing a different cavity size of the chiral crown ether in the repeating units (2a-c), In the c

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