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89998-51-6

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89998-51-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89998-51-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,9 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89998-51:
(7*8)+(6*9)+(5*9)+(4*9)+(3*8)+(2*5)+(1*1)=226
226 % 10 = 6
So 89998-51-6 is a valid CAS Registry Number.

89998-51-6Downstream Products

89998-51-6Relevant articles and documents

Convenient Synthesis of 3-Methyl-2,3,4,4aα,5,6,7,7aα-octahydro-1H-benzofuroisoquinoline

Shenvi, Ashok B.,Ciganek, Engelbert

, p. 2942 - 2947 (2007/10/02)

A new synthesis of 3-methyl-2,3,4,4aα,5,6,7,7aα-octahydro-1H-benzofuroisoquinoline (3) has been developed.The synthesis utilizes the acylation of anion 5 with γ-butyrolactone preferentially at the 4-position.Reduction of the resulting keto alcohol

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