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74018-59-0

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74018-59-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74018-59-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,1 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74018-59:
(7*7)+(6*4)+(5*0)+(4*1)+(3*8)+(2*5)+(1*9)=120
120 % 10 = 0
So 74018-59-0 is a valid CAS Registry Number.

74018-59-0Downstream Products

74018-59-0Relevant articles and documents

Competitive intramolecular aminolysis: Relative rates of 5-and 6-membered lactam ring closure

Patterson, Kevin H.,Depree, Gary J.,Zender, Johannes A.,Morris, Peter J.

, p. 281 - 284 (1994)

Methyl 4,5-diaminopentanoate (4,5-Dape Me) undergoes competitive intramolecular aminolysis to 5-aminomethyl-2-pyrrolidinone (L5) and 5-amino-2-piperidinone (L6) in dilute alkaline aqueous solution at 25°C. Use of this single compound provides an ideal case for assessing the relative rates of 5- and 6-membered lactam ring closure. Assessments are also made using the intramolecular aminolysis of pairs of compounds: methyl 2,4-diaminobutanoate (2,4-Dab Me) and methyl 2,5-diaminopentanoate (2,5-Dape Me); methyl 4-aminobutanoate (4-Ab Me) and methyl 5-aminopentanoate (5-Ape Me).

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