2768-90-3 Usage
Chemical Properties
OLIVE-GREEN TO GREEN-BLACK POWDER
Uses
Histological stain (chromosomes).
Purification Methods
Crystallise the dye from EtOH/diethyl ether. The iodide [605-91-4] crystallises from MeOH or EtOH with m 298-299o(dec) . [Beilstein 23 H 320, 23 I 89, II 282, III/IV 2064, 23/10 V 129.]
Check Digit Verification of cas no
The CAS Registry Mumber 2768-90-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,6 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2768-90:
(6*2)+(5*7)+(4*6)+(3*8)+(2*9)+(1*0)=113
113 % 10 = 3
So 2768-90-3 is a valid CAS Registry Number.
InChI:InChI=1/C25H25N2.ClH/c1-3-26-22(18-16-20-10-5-7-14-24(20)26)12-9-13-23-19-17-21-11-6-8-15-25(21)27(23)4-2;/h5-19H,3-4H2,1-2H3;1H/q+1;/p-1