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62854-20-0

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62854-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62854-20-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,8,5 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 62854-20:
(7*6)+(6*2)+(5*8)+(4*5)+(3*4)+(2*2)+(1*0)=130
130 % 10 = 0
So 62854-20-0 is a valid CAS Registry Number.

62854-20-0Downstream Products

62854-20-0Relevant articles and documents

A stereocontrolled synthesis of a new class of 3,4,5,6- tetrahydropyrimidine-based chiral amino acids

Zamri, Adel,Sirockin, Finton,Abdallah, Mohamed A.

, p. 5157 - 5170 (2007/10/03)

The stereocontrolled synthesis of seven 2-substituted-4-carboxy-3,4,5,6- tetrahydropyrimidines bearing either one chiral center at C-4 or two chiral centers at C-4 and C-8 was performed by condensation of (S)- or (R)- 2,4- diaminobutyric acid (Daba) with iminoethers derived from glycine, (S)- and (R)- serine, (S)- and (R)- tyrosine. Under the conditions reported, epimerization was always completely prevented at the C-4 center, whereas at the C-8 center, it was completely avoided in the case of tyrosine derivatives and considerably diminished for the serine derivatives.

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