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89156-14-9

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89156-14-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89156-14-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,5 and 6 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89156-14:
(7*8)+(6*9)+(5*1)+(4*5)+(3*6)+(2*1)+(1*4)=159
159 % 10 = 9
So 89156-14-9 is a valid CAS Registry Number.

89156-14-9Relevant articles and documents

PREPARATION, STRUCTURE AND ASYMMETRIC DIELS-ALDER REACTIONS OF 10-ARYLSULFONYLISOBORNYL ACRYLATES

Oppolzer, Wolfgang,Kelly, Martha J.,Bernardinelli, Gerald

, p. 5889 - 5892 (2007/10/02)

The crystalline chiral auxiliaries 4 and 5 were readily prepared from champhorsulfonic acid.Their acrylates underwent the Diels-Alder reactions 6->7 with modest asymmetric induction consistent with an X-ray study of 6a.

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