(1S,2R,9R,10S)-9-azido-4,4,12,12-tetramethyl-3,5,11,13-tetraoxatricyclo<8.3.0.02,7>tridec-7-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 140148-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,4 and 8 respectively; the second part has 2 digits, 0 and 2 respectively. Calculate Digit Verification of CAS Registry Number 140148-02: (8*1)+(7*4)+(6*0)+(5*1)+(4*4)+(3*8)+(2*0)+(1*2)=83 83 % 10 = 3 So 140148-02-3 is a valid CAS Registry Number.