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1591761-36-2

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1591761-36-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1591761-36-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,9,1,7,6 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1591761-36:
(9*1)+(8*5)+(7*9)+(6*1)+(5*7)+(4*6)+(3*1)+(2*3)+(1*6)=192
192 % 10 = 2
So 1591761-36-2 is a valid CAS Registry Number.

1591761-36-2Downstream Products

1591761-36-2Relevant articles and documents

An efficient, scalable process for benzphetamine hydrochloride

Pramanik, Chinmoy,Bapat, Kiran,Chaudhari, Ashok,Kulkarni, Mukund G.,Kolla, Rangarao,Sompalli, Srinivasarao,Tripathy, Narendra K.,Gurjar, Mukund K.

, p. 495 - 500 (2014/05/06)

Commercial manufacturing of benzphetamine hydrochloride along with its impurity profiling is disclosed. Deoxygenation of pseudoephedrine is reported with ~100% retention by shielding the amine group as its tert-butyl carbamate, which is very straightforward to eliminate at the end. Four unknown process-related impurities are isolated from the samples of final API and characterized on the basis of their NMR and mass spectral analysis. Structures of the isolated impurities are confirmed by independent syntheses and coinjecting with the isolated one.

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