128937-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128937-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,3 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128937-80:
(8*1)+(7*2)+(6*8)+(5*9)+(4*3)+(3*7)+(2*8)+(1*0)=164
164 % 10 = 4
So 128937-80-4 is a valid CAS Registry Number.
128937-80-4Relevant articles and documents
REACTION OF DIYNOYL CHLORIDES WITH PARA-SUBSTITUTED PHENOLS
Budilova, I. Yu.,Kolesnikov, A. M.,Kolotilo, N. V.,Il'chenko, A. Ya.
, p. 264 - 267 (2007/10/02)
The reaction of diynoyl chlorides with para-substituted phenols was studied.As a result amphiphilic diacetylenic compounds containing an aromatic ring in the chain, which are of interest for the production of Langmuir-Blodgett films, were obtained.