119813-70-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 119813-70-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,8,1 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 119813-70:
(8*1)+(7*1)+(6*9)+(5*8)+(4*1)+(3*3)+(2*7)+(1*0)=136
136 % 10 = 6
So 119813-70-6 is a valid CAS Registry Number.
119813-70-6Relevant articles and documents
REGIOSELECTIVE MONO-ADDITION OF LITHIUM ENOLATES TO N-CARBAMOYL-L-PYROGLUTAMATES
Ohta, Tomihisa,Kimura, Toshihiko,Sato, Nobuaki,Nozoe, Shigeo
, p. 4303 - 4304 (2007/10/02)
Regioselective mono-addition of lithium enolate of esters to N-carbamoyl-L-pyroglutamates (1) gave excellent yields of (2S)-5-oxoamino acid derivatives (2) which were found to be an effective synthon for syntheses of carbapenams and carbapenems.
