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55399-90-1

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55399-90-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55399-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,9 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55399-90:
(7*5)+(6*5)+(5*3)+(4*9)+(3*9)+(2*9)+(1*0)=161
161 % 10 = 1
So 55399-90-1 is a valid CAS Registry Number.

55399-90-1Downstream Products

55399-90-1Relevant articles and documents

Synthesis of tritium labeled isotopomers of L-tyrosine

Augustyniak,Suchecki,Jemielity,Kanski,Kanska

, p. 559 - 567 (2007/10/03)

The synthesis of four selectively labeled isotopomers of L-tyrosine, (L-Tyr), using chemical and enzymatic methods is reported. Four tritium labeled isotopomers of L-phenylalanine (L-Phe) - [2-3H]-, [2′,6′-3H2]-, [3R-3H]- and [3S-3H]- have been synthesized using a combination of chemical and enzymatic methods. The labeled isotopomers of L-Phe have been converted into [2-3H]-, [2′,6′-3H2]-, [3R-3H]-, and [3S-3H]-L-Tyr by using the enzyme L-phenyl-alanine 4′-monooxygenase. Copyright

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