68109-73-9 Usage
Definition
ChEBI: An organic sodium salt that is the disodium salt of 2-amino-5-[(4-amino-3-sulfophenyl)(4-imino-3-sulfocyclohexa-2,5-dien-1-ylidene)methyl]-3-methylbenzene-1-sulfonic acid. It is used in the Van Gieson method in conjunction with picric acid to demonstrate c
llagen fibres red, and in Masson's trichrome to colour smooth muscle in contrast to collagen.
Check Digit Verification of cas no
The CAS Registry Mumber 68109-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,1,0 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 68109-73:
(7*6)+(6*8)+(5*1)+(4*0)+(3*9)+(2*7)+(1*3)=139
139 % 10 = 9
So 68109-73-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H19N3O9S3.2H3N/c1-10-6-13(9-18(20(10)23)35(30,31)32)19(11-2-4-14(21)16(7-11)33(24,25)26)12-3-5-15(22)17(8-12)34(27,28)29;;/h2-9,23H,21-22H2,1H3,(H,24,25,26)(H,27,28,29)(H,30,31,32);2*1H3/b23-20+;;