75243-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75243-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,4 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 75243-89:
(7*7)+(6*5)+(5*2)+(4*4)+(3*3)+(2*8)+(1*9)=139
139 % 10 = 9
So 75243-89-9 is a valid CAS Registry Number.
75243-89-9Relevant articles and documents
3-O--HYDROXY-2-PHENYLINDENONES, PREPARATION AND USE IN THE SYNTHESIS OF PEPTIDES
Mincev, Stoyan,Derdowska, Izabela,Kupryszewski, Gotfryd
, p. 443 - 452 (2007/10/02)
Several 3-O--hydroxy-2-phenylindenones were obtained and used in the synthesis of peptides.Synthesis of Leu-enkephalin was carried out.
