4425-36-9 Usage
Uses
Used in Textile Industry:
Vat Brown 5, Solubilised is used as a dye for cotton fabric dyeing and printing. It can also be used for dyeing and printing of silk, wool, viscose, and vinylon fabrics. It can be applied through direct printing, resist printing, and discharge printing, with a good white discharge effect.
Standard:
Ironing Fastness: ISO 3, AATCC 4
Chlorine bleach: ISO 4, AATCC 4-5
Light Fastness: ISO 6-7, AATCC 5-6
Mercerized: ISO 4, AATCC 5
Oxygen bleach: ISO 4-5, AATCC 4-5
Soaping: ISO 4-5, AATCC 4-5
Fading: ISO 4, AATCC 4-5
Stain: ISO 5, AATCC 4-5
Preparation
(a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Brown 5 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source (such as Sulfur trioxide, Chlorosulfonic acid or Methyl chlorosulfonate, etc.) processing ?C.I. Vat Brown 5. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.
Standard
Ironing Fastness
Fading
Stain
ISO
3
AATCC
4
Check Digit Verification of cas no
The CAS Registry Mumber 4425-36-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,2 and 5 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4425-36:
(6*4)+(5*4)+(4*2)+(3*5)+(2*3)+(1*6)=79
79 % 10 = 9
So 4425-36-9 is a valid CAS Registry Number.
InChI:InChI=1/C24H14O8S4.2Na/c25-35(26,27)31-21-19-15-7-3-1-5-13(15)9-11-17(19)33-23(21)24-22(32-36(28,29)30)20-16-8-4-2-6-14(16)10-12-18(20)34-24;;/h1-12H,(H,25,26,27)(H,28,29,30);;/q;2*+1/p-2
