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31644-05-0

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31644-05-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31644-05-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,4 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31644-05:
(7*3)+(6*1)+(5*6)+(4*4)+(3*4)+(2*0)+(1*5)=90
90 % 10 = 0
So 31644-05-0 is a valid CAS Registry Number.

31644-05-0Downstream Products

31644-05-0Relevant articles and documents

Synthesis and resolution of the benzomorphan-based kappa opioid agonist bremazocine

Thomas, James B.,Brieaddy, Lawrence E.,Boldt, Karl G.,Perretta, Carin,Carroll, F. Ivy

, p. 1481 - 1484 (2008/02/08)

An efficient synthesis of racemic bremazocine hydrochloride salt was developed. The racemic material was resolved using (+)- and (-)-3- bromocamphorsulfonic acid ammonium salt to give optically pure samples of (-)- and (+)-bremazocine. Georg Thieme Verlag

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