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133603-87-9

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133603-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133603-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,0 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133603-87:
(8*1)+(7*3)+(6*3)+(5*6)+(4*0)+(3*3)+(2*8)+(1*7)=109
109 % 10 = 9
So 133603-87-9 is a valid CAS Registry Number.

133603-87-9Downstream Products

133603-87-9Relevant articles and documents

A simple method of synthesis of (±)-2,3-diarylpiperazines and a novel method of resolution of (±)-2,3-diphenylpiperazine

Vairaprakash, Pothiappan,Periasamy, Mariappan

, p. 3636 - 3638 (2006)

Intramolecular reductive coupling of diimines in the presence of Zn/Ti(OiPr)2Cl2 gives the corresponding (±)-2,3-diarylpiperazines in 73-83% yields with dl/meso ratio >99%: 1%. The (±)-2,3-diphenylpiperazine obtained in t

Diastereoselective synthesis of piperazines by manganese-mediated reductive cyclization.

Mercer, Gregory J,Sigman, Matthew S

, p. 1591 - 1594 (2007/10/03)

A simple and effective synthesis of trans aryl-substituted piperazines using a Bronsted acid and manganese(0) is described. [reaction: see text]

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