119973-61-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 119973-61-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,9,7 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 119973-61:
(8*1)+(7*1)+(6*9)+(5*9)+(4*7)+(3*3)+(2*6)+(1*1)=164
164 % 10 = 4
So 119973-61-4 is a valid CAS Registry Number.
119973-61-4Relevant articles and documents
Synthesis and Reactivity of β-Lactones Derived from L-Threonine and Related Amino Acids
Pansare, Sunil V.,Vederas, John C.
, p. 2311 - 2316 (2007/10/02)
The synthesis and nucleophilic ring opening of optically pure N-protected α-amino-β-alkyl β-lactones was investigated.Treatment of N-BOC-L-threonine (8) and N-BOC-L-allo-threonine (9) under modified Mitsunobu conditions (Ph3P, dimethyl azodicarboxylate, -