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161971-54-6

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161971-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161971-54-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,7 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 161971-54:
(8*1)+(7*6)+(6*1)+(5*9)+(4*7)+(3*1)+(2*5)+(1*4)=146
146 % 10 = 6
So 161971-54-6 is a valid CAS Registry Number.

161971-54-6Relevant articles and documents

Synthesis of novel 3D-rich α-amino acid-derived 3-pyrazolidinones

Glava?, Jaka,Dahmann, Georg,Po?gan, Franc,Ri?ko, Sebastijan,?tefane, Bogdan,Svete, Jurij,Gro?elj, Uro?

, p. 715 - 726 (2018/01/17)

Synthetic approaches towards novel 3-pyrazolidinone derivatives functionalized at positions N(1) and/or C(5) were studied. 5-Aminoalkyl-3-pyrazolidinones were prepared in four steps from N-protected glycines via Masamune-Claisen homologation, reduction, O

The chemistry of vicinal tricarbonyls A synthesis of (±)-slaframine and (±)-6-epi-slaframine

Wasserman, Harry H.,Vu, Chi B.

, p. 9779 - 9782 (2007/10/02)

A synthesis of (±)-slaframine and (±)-6-epi-slaframine is described. The approach makes use of the intramolecular alkylation of an N-substituted 3-hydroxypyrrole-2-carboxylate ester.

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