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67740-49-2

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67740-49-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67740-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,4 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 67740-49:
(7*6)+(6*7)+(5*7)+(4*4)+(3*0)+(2*4)+(1*9)=152
152 % 10 = 2
So 67740-49-2 is a valid CAS Registry Number.

67740-49-2Relevant articles and documents

Trimethoxyphenyl Compounds, XI. Constituents of Hagenia abyssinica, 2: Synthesis of Phloracylophenones Containing One Phloroglucinol Unit

Schiemenz, Guenter Paulus,Behrens, Heinz,Ebert, Claus Peter,Maienschein, Konrad,Schroeder, Jens-Michael

, p. 681 - 692 (2007/10/02)

For the Koso constituents K6 and K8, we previously proposed the structures 1a, b and 2a, b.These assignments have been confirmed by synthesis. - Keywords: Flores koso, Revised Structure, Synthesis of Phloroglucinols

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