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1280608-67-4

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1280608-67-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280608-67-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,6,0 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1280608-67:
(9*1)+(8*2)+(7*8)+(6*0)+(5*6)+(4*0)+(3*8)+(2*6)+(1*7)=154
154 % 10 = 4
So 1280608-67-4 is a valid CAS Registry Number.

1280608-67-4Relevant articles and documents

Total synthesis and absolute stereochemistry of seragakinone A

Takada, Akiomi,Hashimoto, Yoshimitsu,Takikawa, Hiroshi,Hikita, Katsuyoshi,Suzuki, Keisuke

, p. 2297 - 2301 (2011/04/16)

(Chemical Equation Presented) Cyclic transformation: The key transformations of the asymmetric total synthesis of the marine-derived natural product seragakinone A are two N-heterocyclic carbene catalyzed benzoin cyclizations that result in the construction of two rings and a pinacol-type rearrangement to install the angular prenyl substituent.

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