804557-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 804557-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,5,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 804557-83:
(8*8)+(7*0)+(6*4)+(5*5)+(4*5)+(3*7)+(2*8)+(1*3)=173
173 % 10 = 3
So 804557-83-3 is a valid CAS Registry Number.
804557-83-3Relevant academic research and scientific papers
A chemoenzymatic approach to glycopeptide antibiotics
Lin, Hening,Walsh, Christopher T.
, p. 13998 - 14003 (2007/10/03)
Many biologically active natural products are constrained by macrocyclization and modified with carbohydrates. These two types of modifications are essential for their biological activities. Here we report a chemoenzymatic approach to make carbohydrate-mo
