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61951-82-4 Usage


REACTIVE RED 120 is a bis(azo) compound with a benzene core and two (4-amino-6-chloro-1,3,5-triazin-2-yl)amino groups attached at positions 1 and 4, which in turn have 5-hydroxy-6-[(2-sulfophenyl)diazenyl]-2,7-disulfonaphthalen-4-yl groups attached to their amino functions. It is a red uniform powder that is soluble in water, with a solubility of more than 140 g/L at 50°C.


Used in Textile Industry:
REACTIVE RED 120 is used as a dye for cotton or viscose fiber volume dyeing and printing. It provides a colorful blu-ray red dyeing color and is compatible with various mediums. It is also used for direct printing and is suitable for polyester/cotton and polyester/stick blended dyeing.
Used in Dyeing Process:
REACTIVE RED 120 is used as a dye in the dyeing process for its high compatibility and good washability. It exhibits light fastness, oxygen bleaching resistance, perspiration fastness, and soaping resistance, making it suitable for various dyeing applications.
The standard for REACTIVE RED 120 includes the following ratings:
Light Fastness: 5
Oxygen Bleaching: 4
Perspiration Fastness: 4
Soaping: 4-5 (Alkali)
Fading: 5
Stain: 5


Cyanuric chloride is condensed with H acid, then condensed with p-phenylenediamine, and then diazotized with anthranilic acid, coupled with the condensate to synthesize Reactive Red 120.


2-Aminobenzenesulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and 2,4,6-Trichloro-1,3,5-triazine first condensation, its product (2 Moore) and Benzene-1,4-diamine?second condensation.


Light Fastness





Check Digit Verification of cas no

The CAS Registry Mumber 61951-82-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,5 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 61951-82:
134 % 10 = 4
So 61951-82-4 is a valid CAS Registry Number.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017


1.1 GHS Product identifier

Product name (3Z)-5-[[4-chloro-6-[4-[[4-chloro-6-[[(7Z)-8-oxo-3,6-disulfo-7-[(2-sulfophenyl)hydrazinylidene]naphthalen-1-yl]amino]-1,3,5-triazin-2-yl]amino]anilino]-1,3,5-triazin-2-yl]amino]-4-oxo-3-[(2-sulfophenyl)hydrazinylidene]naphthalene-2,7-disulfonic acid

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:61951-82-4 SDS

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