Product
Supplier
Encyclopedia
Inquiry
Home > Encyclopedia > Direct Black 168

Direct Black 168

Direct Black 168 structure

Direct Black 168 

structure
  • CAS No:

    85631-88-5

  • Formula:

    C34H27N9O11S3.3Na

  • Chemical Name:

    Direct Black 168

  • Synonyms:

    2,7-Naphthalenedisulfonic acid,4-amino-3-[2-[4-[[4-[2-(2-amino-4-hydroxyphenyl)diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-,sodium salt (1:3);2,7-Naphthalenedisulfonic acid,4-amino-3-[[4-[[4-[(2-amino-4-hydroxyphenyl)azo]phenyl]amino]-3-sulfophenyl]azo]-5-hydroxy-6-(phenylazo)-,trisodium salt;C.I. 335475;C.I. Direct Black 168;Direct Black 168;Direct Black HEF-SF;Coriacide Black SB;Duasyn Direct Black HEF-SF;Direct Black H 8F-SF-VP132;Duasyn Direct Black HEF;Derma Carbon NBS;Direct Black HEF Liq.;Duasyn Black HEF-SF Liquid;83046-38-2;877066-61-0

  • Categories:

    Dyes and Pigments  >  Dye

Direct Black 168 Basic Attributes

899.77237

856.08900

288-038-6

Characteristics

366.94000

12.62310

Safety Information

|Warning|H319 (15.97%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P264, P273, P280, P305+P351+P338, P337+P313, and P501|Aggregated GHS information provided by 214 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Direct Black 168 Use and Manufacturing

Methods of Manufacturing

Using 4, 4'-diaminodiphenylamine-2-sulfonic acid, m-aminophenol, H acid and aniline as raw materials. First, 4, 4'-diamino-α-sulfonic acid is double-nitrided, and then respectively coupled with m-aminobenzoic acid and H acid. Finally, aniline is diazotized and coupled with the aforementioned bisazo compound to obtain the product. After salting out, filtering, drying and crushing, the finished product is obtained.

Uses

Direct black HEF is used for dyeing and printing cotton, viscose fiber and silk. Can also be used for leather coloring.

2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[4-[2-(2-amino-4-hydroxyphenyl)diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:3): ACTIVE|PMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.

Computed Properties

Molecular Weight:899.8
Hydrogen Bond Donor Count:5
Hydrogen Bond Acceptor Count:20
Rotatable Bond Count:10
Exact Mass:899.04504898
Monoisotopic Mass:899.04504898
Topological Polar Surface Area:375
Heavy Atom Count:60
Complexity:1760
Covalently-Bonded Unit Count:4
Compound Is Canonicalized:Yes

Recommended Suppliers of Direct Black 168

Scan the QR Code to Share

Feedback & Suggestions
Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.