77767-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77767-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,6 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77767-16:
(7*7)+(6*7)+(5*7)+(4*6)+(3*7)+(2*1)+(1*6)=179
179 % 10 = 9
So 77767-16-9 is a valid CAS Registry Number.
InChI:InChI=1/C18H16F6N2O2/c19-17(20,21)13-1-5-15(6-2-13)25-9-27-11-26(12-28-10-25)16-7-3-14(4-8-16)18(22,23)24/h1-8H,9-12H2
77767-16-9Relevant articles and documents
3,7-BIS-(4-TRIFLUOROMETHYLPHENYL)-1,5,3,7-DIOXADIAZOCINE: A NOVEL CYCLIC PRODUCT FROM A REACTION OF 4-TRIFLUOROMETHYLBENZENEDIAZONIUM CHLORIDE AND METHYLAMIN-FORMALDEHYDE
Kolar, George F.,Schendzielorz, Michael
, p. 1043 - 1044 (2007/10/02)
4-Substituted benzenediazonium chlorides react with methylamine-formaldehyde mixture at -5 to-10 deg C and controlled pH to afford the novel 3,7-bis-(4-X-aryl)-1,5,3,7-dioxadiazocines rather than the expected 1-(4-X-aryl)-3-hydroxymethyl-3-methyltriazenes or related dimeric products.