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Acid Red 266

Acid Red 266 structure

CAS No:
57741-47-6
Formula:
C17H11ClF3N3O4S.Na
Chemical Name:
Acid Red 266
Synonyms:
2-Naphthalenesulfonic acid,6-amino-5-[2-[4-chloro-2-(trifluoromethyl)phenyl]diazenyl]-4-hydroxy-,sodium salt (1:1);2-Naphthalenesulfonic acid,6-amino-5-[[4-chloro-2-(trifluoromethyl)phenyl]azo]-4-hydroxy-,monosodium salt;C.I. Acid Red 266;Diacid Red N 2B;Kayanol Red NB;Merpacyl Red B;Mitsui Nylon Fast Red BB;Nylomine Red A 2B;Suminol Fast Red BB;Nylanthrene Red B 2BSA;Acid Red 266;Aminyl Red E 2BL;Kenamide Red G 2B;Nylosan Red E-BM;Simacid Red 24903;Best Acid Red A 2B;Fabrinyl Red 2B;Acid Red E-RM;Covanyl Red C 2B;Everacid Red A 2B;Concorde Acid Red 2BSA;12217-37-7
Categories:
Dyes and Pigments > Dye

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Acid Red 266 Basic Attributes

Molecular Weight：

467.7819796

Exact Mass：

466.99300

EC Number：

260-925-2

Characteristics

PSA：

136.55000

XLogP3：

6.78130

Safety Information

GHS Classification：

|Danger|H318 (66.67%): Causes serious eye damage [Danger Serious eye damage/eye irritation]|P264, P273, P280, P305+P351+P338, P310, P337+P313, and P501|Aggregated GHS information provided by 66 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Acid Red 266 Use and Manufacturing

Methods of Manufacturing

Using 4-chloro-2-trifluoromethylaniline and gamma acid as raw materials, firstly diazotize 4-chloro-2-trifluoromethylaniline, and then couple with gamma acid to obtain the product. The finished product is obtained by salting out, filtering, drying and crushing.

Uses

Weak acid red E-BM is mainly used for nylon dyeing, it can also be used for dyeing acrylic fiber with copper ion dyeing method, and is also used for dyeing acetate fiber. When dyeing, there is a slight change in the color of copper ions, but no change in the case of iron ions.

Manufacturing Info：

2-Naphthalenesulfonic acid, 6-amino-5-[2-[4-chloro-2-(trifluoromethyl)phenyl]diazenyl]-4-hydroxy-, sodium salt (1:1): ACTIVE

Computed Properties

Molecular Weight:467.8
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:10
Rotatable Bond Count:3
Exact Mass:466.9930334
Monoisotopic Mass:466.9930334
Topological Polar Surface Area:137
Heavy Atom Count:30
Complexity:724
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes