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89611-15-4

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89611-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89611-15-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,1 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89611-15:
(7*8)+(6*9)+(5*6)+(4*1)+(3*1)+(2*1)+(1*5)=154
154 % 10 = 4
So 89611-15-4 is a valid CAS Registry Number.

89611-15-4Upstream product

89611-15-4Relevant articles and documents

Synthetic Application of Lithiation Reaction: Part XVIII - Synthesis of (+/-)-3,4-Dihydro-3-phenylisocoumarin and Aglycone of (+/-)-Dihydrohomalicine

Narasimhan, N. S.,Mali, R. S.,Kulkarni, B. K.

, p. 850 - 852 (2007/10/02)

N-Methylbenzamide on lithiation with n-butyllithium followed by reaction with N-methylformanilide gives compound (1), which on hydrolysis with dil.HCl furnishes 2-formylbenzoic acid (2).This acid on reaction with benzylidenetriphenylphosphorane gives stil

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