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145657-28-9

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145657-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145657-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,6,5 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 145657-28:
(8*1)+(7*4)+(6*5)+(5*6)+(4*5)+(3*7)+(2*2)+(1*8)=149
149 % 10 = 9
So 145657-28-9 is a valid CAS Registry Number.

145657-28-9Relevant articles and documents

Synthesis of enaminones in aqueous media using catalytic dilute HCl

Cui, Bin,Wang, Rui-Hua,Chen, Li-Zhuang,Jin, Yan,Han, Guang-Fan

supporting information; experimental part, p. 1064 - 1070 (2011/04/26)

(Chemical Equation Presented) A green and convenient approach to the synthesis of β-enaminones from aromatic amines and 5-substituted-1,3- cyclohexanedione in the presence of dilute hydrochloric acid (30 mmol=L) as a catalyst in solvent-free media is described. This method provides several advantages such as environmental friendliness, low cost, good yields, and simple workup procedure. Copyright Taylor & Francis Group, LLC.

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