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77670-47-4

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77670-47-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77670-47-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,7 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77670-47:
(7*7)+(6*7)+(5*6)+(4*7)+(3*0)+(2*4)+(1*7)=164
164 % 10 = 4
So 77670-47-4 is a valid CAS Registry Number.

77670-47-4Relevant articles and documents

Taiwaniaflavone and its Derivatives: a New Series of Biflavones from Taiwania cryptomerioides Hayata

Kamil, Mohammad,Ilyas, Mohammad,Rahman, Wasiur,Hasaka, Noriko,Okigawa, Masayoshi,Kawano, Nobusuke

, p. 553 - 559 (2007/10/02)

Taiwaniaflavone (3,3'-linked biapigenin) (1) and its methyl ethers isolated from the leaves of Taiwania cryptomerioides Hayata (Taxodiaceae) have been identified on the basis of spectral data and by synthesis of taiwaniaflavone methyl ethers

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