131131-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131131-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,3 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131131-18:
(8*1)+(7*3)+(6*1)+(5*1)+(4*3)+(3*1)+(2*1)+(1*8)=65
65 % 10 = 5
So 131131-18-5 is a valid CAS Registry Number.
131131-18-5Relevant articles and documents
Synthesis and structure-activity relationships of deltorphin analogues
Salvadori,Marastoni,Balboni,Borea,Morari,Tomatis
, p. 1656 - 1661 (2007/10/02)
In order to study the structure-activity relationships of natural opioid deltorphins (H-Tyr-D-Met-Phe-His-Leu-Met-Asp-NH2 and H-Tyr-D-Ala-Phe-Asp[or Glu]-Val-Val-Gly-NH2), 15 analogues were synthesized by the solution method. Their a
