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2159-34-4

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2159-34-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2159-34-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,5 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2159-34:
(6*2)+(5*1)+(4*5)+(3*9)+(2*3)+(1*4)=74
74 % 10 = 4
So 2159-34-4 is a valid CAS Registry Number.

2159-34-4Relevant articles and documents

One-pot cascade synthesis of azabicycles via the nitro-Mannich reaction and N -alkylation

Disadee, Wannaporn,Ruchirawat, Somsak

, p. 707 - 711 (2018/02/09)

A one-pot, metal-free process for the synthesis of azabicycles is developed. The key transformations involved a cascade of double intramolecular cyclizations via the nitro-Mannich reaction and N-alkylation, providing various ring systems of azabicycles in

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