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136657-25-5

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136657-25-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136657-25-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,5 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136657-25:
(8*1)+(7*3)+(6*6)+(5*6)+(4*5)+(3*7)+(2*2)+(1*5)=145
145 % 10 = 5
So 136657-25-5 is a valid CAS Registry Number.

136657-25-5Relevant articles and documents

Synthesis of Limonoid Model Insect Antifeedants through Stereoselective Aldol Addition Reactions

Mateos, Alfonso Fernandez,Blanco, Jesus Angel de la Fuente

, p. 7084 - 7092 (2007/10/02)

The aldol condensation of 3-furaldehyde and enol silanes or enolates (Li, Mg, and Ti) of 2,6-dimethyl- and 2,2,6-trimethylcyclohexanones has been investigated (Tables I, II and Chart II).The reaction of dimethyl enol silane 1 showed poor facial and diaste

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