89661-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89661-73-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,6 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89661-73:
(7*8)+(6*9)+(5*6)+(4*6)+(3*1)+(2*7)+(1*3)=184
184 % 10 = 4
So 89661-73-4 is a valid CAS Registry Number.
89661-73-4Relevant articles and documents
Synthesis and pharmacological activity of dermorphin tetrapeptide-analogs
Salvadori,Sarto,Tomatis
, p. 489 - 493 (2007/10/02)
The authors report on the synthesis and pharmacological activity of twenty-four tetrapeptide-analogs of the opioid heptapeptide dermorphin; their terminal amino group were replaced by guanidino functions and/or the C-termini were changed into amide moieti