Description
Technical Parameters
Direct yellow 4 Quick Details
| Name | Direct Yellow 4 |
| Synonyms | C.I. 24890 DIRECT YELLOW Direct Yellow 4 26 DIRECT YELLOW 26 44 DIRECT YELLOW 44 27 DIRECT YELLOW 27 83 DIRECT YELLOW 83 50 DIRECT YELLOW 50 BRILLIANT YELLOW SODIUM C.I. Direct Yellow 4 (VAN) C.I. Direct Yellow 4, disodium salt C.I. Direct Yellow 4, disodium salt (8CI) sodium 4,4'-bis(p-hydroxyphenylazo)-2,2'-vinylenedibenzenesulphonate 2,2'-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonic acid} 2,2'-(E)-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonic acid} disodium 2,2'-(E)-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonate} |
| CAS | 3051-11-4 |
| EINECS | 221-267-1 |
| InChI | InChI=1/C26H20N4O8S2/c31-23-11-7-19(8-12-23)27-29-21-5-3-17(25(15-21)39(33,34)35)1-2-18-4-6-22(16-26(18)40(36,37)38)30-28-20-9-13-24(32)14-10-20/h1-16,29-30H,(H,33,34,35)(H,36,37,38) |
Specification
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Risk and safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| HS Code | 32041400 |
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.
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Stable high quality, widely accepted in worldwide market .
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Professional service team,R&D and international sales.
05/
More than 15 years' experience in supplying all kinds of pigments.
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Customize special colors .
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