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203450-31-1

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203450-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203450-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,4,5 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 203450-31:
(8*2)+(7*0)+(6*3)+(5*4)+(4*5)+(3*0)+(2*3)+(1*1)=81
81 % 10 = 1
So 203450-31-1 is a valid CAS Registry Number.

203450-31-1Downstream Products

203450-31-1Relevant articles and documents

Water-soluble class C β-lactamase catalytic residue mimic: Effect of proximally positioned functional groups on their pKa values

Kato-Toma, Yoko,Imajo, Seiichi,Ishiguro, Masaji

, p. 51 - 54 (2007/10/03)

Molecules mimicing class C β-lactamase catalytic residues were synthesized to study the effect of proximal positioning of serine, lysine and tyrosine side chains on their pKa values. The three amino acid side chains were mimicked by hydroxymethyl group, a

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