Direct Red 31

• Category :

  Dyestuffs and Pigments/Direct Dyes

• Synonyms :

  C.I.Direct Red 31;Disodium 7,7'-iminobis(4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate);Direct Pink 5B;2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2);2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2-;EINECS 225-669-8;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 NO :

  5001-72-9

• EC NO :

  225-669-8

• Molecular Formula :

  C₃₂H₂₁N₅Na₂O₈S₂

• Molecular Weight :

  713.6474

• Main Specifications :

• 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-;;

• Packing :

  25kg/drum or carton

• Product description :

  pls allow me introduce our company named Tianjin Huamaolong Technology Co., Ltd. which has 3 dyes factories and professionally engaging in the R&D, technology service of dye and its intermediate, dying and printing agent. We always handle our products in China market from 1994 and gain high reputation. In 2008, we established export branch to expand our sales market oversea. The major products we offer as below: C.I. ACID BLUE 7 C.I.ACID BLUE 1 C.I ACID BLUE142 C.I. ACID RED 52 C.I. MORDANT RED 15 C.I. DIRECT ORANGE 26 C.I. DIRECT RED 23 C.I. DIRECT BROWN 1 C.I. DIRECT BROWN 95 C.I BASIC ORANGE 1 TVB-Sky Blue BB ……. Please note that the product specification will be sent to you upon your request, and a small sample could also be provided for your final checking if the price is finally acceptable. Your soon reply will be highly appreciated! Thanks in advance Best Wishes, Rita Export Manager Tianjin Huamaolong Technology Co., Ltd Welcome to Website: www.hmldyes.com Tel:+86-22-58882555 Fax:+86-22-58890609 Mobil: 013752572389 Skype: xiao4225 MSN: xiao4225@hotmail.com

• Uses :

  Usd in textile,wool,cotton,leather,paper and so on

• Molecular Structure :