Log in | Join Free | china | japan | germany

C.I. Direct Yellow 21

Request For Quotation
C.I. Direct Yellow 21 Basic information
Product Name:C.I. Direct Yellow 21
Synonyms:C.I. Direct Yellow 21;Direct Yellow 21;C.I.Direct Yellow 21:C.I.40045
CAS:1325-46-8
MF:
MW:0
EINECS:603-622-6
Product Categories:
Mol File:Mol File
C.I. Direct Yellow 21 Structure
C.I. Direct Yellow 21 Chemical Properties
Safety Information
MSDS Information
C.I. Direct Yellow 21 Usage And Synthesis
Preparation(E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid sodium sodium hydroxide solution together with aniline backflow heating.
Properties and Applicationssoluble in water to pure yellow, slightly soluble in ethanol for yellow. The strong sulfuric acid in red orange for, for the yellow brown after diluted, precipitation. The dye solution to join a light yellow brown hydrochloric acid precipitation; Add sodium hydroxide have orange precipitation.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 3 2 3 3-4
C.I. Direct Yellow 21 Preparation Products And Raw materials
Raw materialsAniline
Tag:C.I. Direct Yellow 21(1325-46-8) Related Product Information
Direct Yellow 19 Direct Yellow 20 Benzenesulfonic acid, 3,5-bis[(2,4-diamino-5-nitrophenyl)azo]-4-methyl-, monosodium salt Direct Yellow 24 Direct Yellow 176 DIRECT YELLOW 2 Direct Yellow 173 sodium 6-methyl-2'-[4-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl][2,6'-bibenzothiazole]-7-sulphonate 6-Benzothiazolecarboxylic acid, 2-[4-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl]-7-sulfo-, disodium salt