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304440-45-7

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304440-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 304440-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,4 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 304440-45:
(8*3)+(7*0)+(6*4)+(5*4)+(4*4)+(3*0)+(2*4)+(1*5)=97
97 % 10 = 7
So 304440-45-7 is a valid CAS Registry Number.

304440-45-7Relevant articles and documents

Elongated phosphoranes by C-C coupling of haloaroylmethylidene-triphenylphosphoranes: Synthesis and applications

Thiemann, Thies,Umeno, Kuniharu,Wang, Jian,Tabuchi, Yumiko,Arima, Kazuya,Watanabe, Masataka,Tanaka, Yasuko,Gorohmaru, Hideki,Mataka, Shuntaro

, p. 2090 - 2110 (2007/10/03)

Haloaroylmethylidenephosphoranes 3 can be subjected to Pd(o) mediated C-C coupling reactions to yield diaryl-, arylhetaryl-, dihetaryl, arylethenylaryl/hetaryl- and arylethynylaryl/hetaryl-carbonylmethylidenephosphoranes 4-9. Suzuki-Kumada reactions can a

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