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90921-20-3

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90921-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90921-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,2 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90921-20:
(7*9)+(6*0)+(5*9)+(4*2)+(3*1)+(2*2)+(1*0)=123
123 % 10 = 3
So 90921-20-3 is a valid CAS Registry Number.

90921-20-3Relevant articles and documents

A convenient one-pot synthesis of N-aryl-3-pyrrolines

Jayaprakash, Karamil,Venkatachalam, Chittoor S.,Balasubramanian, Kalpattu K.

, p. 6493 - 6496 (1999)

N-propargylanilines under one-pot homologation conditions, undergo an in situ cyclisation catalysed by Cu(I) to yield 3-pyrrolines in good yield.

Gallium mediated allylation and propargylation of 1-(α-aminoalkyl)-benzotriazole: An alternative route to homoallylic and homopropargyl amines

Bao, Weiliang,Zhang, Yongmin

, p. 615 - 620 (2007/10/03)

Mediated by gallium metal 1-(α-aminoalkyl)benzotriazole reacted with allylic and propargyl bromide to give homoallylic and homopropargyl amines in moderate to good yields.

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