Description
Technical Parameters
Direct Red 31 Quick Details
| Name | Direct Red 31 |
| Synonyms | Direct pink Direct Red 31 Direct Pink 5B Diphenyl Red RW EINECS 225-669-8 C.I.Direct Red 31 C.I. Direct red 31 Nippon Fast Red 2B Benzo Rhoduline Red B C.I.Direct Red 31(29100) Chloramine Rose B,Pyrazol Pink 2B 2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2- Disodium 7,7'-iminobis(4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate) 7,7'-iminobis[4-hydroxy-3-(phenylazo)-2-naphthalenesulfonic aci disodium sa 2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(phenylazo)-, disodium salt disodium (3E,3'E)-7,7'-iminobis[4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2-sulfonate] |
| CAS | 5001-72-9 |
| EINECS | 225-669-8 |
| InChI | InChI=1/C32H23N5O8S2.2Na/c38-31-25-13-11-23(15-19(25)17-27(46(40,41)42)29(31)36-34-21-7-3-1-4-8-21)33-24-12-14-26-20(16-24)18-28(47(43,44)45)30(32(26)39)37-35-22-9-5-2-6-10-22;;/h1-18,33-35H,(H,40,41,42)(H,43,44,45);;/q;2*+1/p-2/b36-29-,37-30-; |
Specification
|
Industry
| Raw Materials | Aniline 4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid Sodium nitrite Hydrochloric acid |
COMPANY INFORMATION
Hangzhou Reward Technology Co.,Ltd has been specialized in DYESTUFF for many years. Our main products are acid dyes and disperse dyes such as acid blue 25, acid blue 80, disperse blue 359, disperse brown 27 and so on. Those dyes has been exported to America, Europe, Africa and won good comments from customers.
01/
All kinds of dyes One-stop purchase ,matching more easier .
02/
Free samples are available.
03/
Stable high quality, widely accepted in worldwide market .
04/
Professional service team,R&D and international sales.
05/
More than 15 years' experience in supplying all kinds of pigments.
06/
Customize special colors .
Hot Tags: direct red 31 cas: 5001-72-9, China direct red 31 cas: 5001-72-9 manufacturers, suppliers, factory
