Chinese Japanese Germany Korea
ChemicalBook >> CAS DataBase List >>Acid yellow 25 (c.i. 18835)

Acid yellow 25 (c.i. 18835)

Acid yellow 25 (c.i. 18835) Structure
Acid yellow 25 (c.i. 18835) structure
CAS No.
6359-85-9
Chemical Name:
Acid yellow 25 (c.i. 18835)
Synonyms
Yellow R;AcidYellowER;AcidYellowRN;AcidolYellowGE;C.I.AcidYellow25;Egacid Yellow R.;AminylYellowE-RL;Mnltacid Yellow R;Covanyl Yellow RN;DiacidFastYellowR
CBNumber:
CB0503480
Molecular Formula:
C23H21N5O6S2.Na
Molecular Weight:
550.57
MDL Number:
MFCD00003121
MOL File:
6359-85-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:48:21
Request For Quotation

Acid yellow 25 (c.i. 18835) Properties

Density 1.282[at 20℃]
storage temp. room temp
Colour Index 18835
form powder
Water Solubility 73.7g/L at 20℃
λmax 392 nm
ε(extinction coefficient) 13200 at 259nm in H2O at 0.03g/L
Major Application diagnostic assay manufacturing
hematology
histology
InChIKey WYLWMAWLDZBLRN-QREUMGABSA-M
SMILES [Na+].C1(S([O-])(=O)=O)=CC=C(N2C(=O)C(/N=N/C3=CC=C(C)C(S(NC4=CC=CC=C4)(=O)=O)=C3)C(C)=N2)C=C1
LogP -0.8 at 23℃
CAS DataBase Reference 6359-85-9
FDA UNII 45Z95309RP
EPA Substance Registry System C.I. Acid Yellow 25 (6359-85-9)
UNSPSC Code 12171500
NACRES NA.47

SAFETY

Risk and Safety Statements

Hazard statements  H412
Precautionary statements  P273-P501
WGK Germany  3
TSCA  TSCA listed
Storage Class 11 - Combustible Solids
REACH Registrations Active

Acid yellow 25 (c.i. 18835) price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 201960 Acid Yellow 25 Dye content 40% 6359-85-9 10g $81.1 2026-04-30 Buy
Chem-Impex 41897 Acid Yellow 25 ≥40%(Dyecontent) 6359-85-9 10G $76.51 2026-05-19 Buy
aablocks AA00E8ZK Acid Yellow 25 6359-85-9 10g $16 2026-05-28 Buy
aablocks AA00E8ZK Acid Yellow 25 6359-85-9 25g $21 2026-05-28 Buy
aablocks AA00E8ZK Acid Yellow 25 6359-85-9 100g $52 2026-05-28 Buy
Product number Packaging Price Buy
201960 10g $81.1 Buy
41897 10G $76.51 Buy
AA00E8ZK 10g $16 Buy
AA00E8ZK 25g $21 Buy
AA00E8ZK 100g $52 Buy

Acid yellow 25 (c.i. 18835) Chemical Properties,Uses,Production

Chemical Properties

Soluble in water. Slightly soluble in ethanol and acetone. Its aqueous solution is yellow, adding sodium hydroxide color does not change; turbid when cold. Yellow in concentrated sulfuric acid, fluorescent yellow precipitate after dilution.

Uses

Acid Yellow 25 is a stain/dye. Dyes and metabolites.

Preparation

5-Amino-2-methyl-N-phenylbenzenesulfonamidediazo, and 4-(3-Methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling.

Flammability and Explosibility

Not classified

Properties and Applications

yellow. Yellow powder. Soluble in water yellow, encounter cold becomes muddy. Slightly soluble in ethanol and acetone. Meet strong sulfuric acid is yellow, the generation after diluted fluorescent yellow precipitation. Its water solution meet sodium hydroxide solution without change. Mainly used for wool and polyamide fiber of printing and dyeing, also can be used for leather and electrochemical aluminum shading, occasionally used for paper coating.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5-6 4 2 3 1 3 3
AATCC 6-7 4 4 3-4 1 1 4

Acid yellow 25 (c.i. 18835) Preparation Products And Raw materials

Raw materials

5-pyrrazolone

Preparation Products

Acid yellow 25 (c.i. 18835) Suppliers

Global( 52)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Baoyang Baoxin Biotechnology Co., LTD 021-56698539 19921169802 bxsw_sh@163.com China 3913 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65
Alfa Chemistry 1-516-6625404 support@alfa-chemistry.com United States 9170 60
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Shandong Xiya Chemical Co., Ltd. 4009903999 13395398332 sales@xiyashiji.com China 20788 60
Shanghai Orgchem Co.,Ltd. +86-21-5877 1921 info@chemofchina.com China 9630 55
Zhengzhou Acme Chemical Co., Ltd. 037163312495 13303845143 1416159398@qq.com China 10151 58
Hefei TNJ Chemical Industry Co.,Ltd. +86-0551-65418671 +86-189 4982 3763 sales@tnjchem.com China 34526 58
Dideu Industries Group Limited +8617392712697 1022@dideu.com China 29091 58
SIMAGCHEM CORP +86-5922680277 +86-13806087780 sale@simagchem.com China 17339 58
Supplier Advantage
Shanghai Baoyang Baoxin Biotechnology Co., LTD 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 65
Alfa Chemistry 60
Shanghai YuanYe Biotechnology Co., Ltd. 60
Shandong Xiya Chemical Co., Ltd. 60
Shanghai Orgchem Co.,Ltd. 55
Zhengzhou Acme Chemical Co., Ltd. 58
Hefei TNJ Chemical Industry Co.,Ltd. 58
Dideu Industries Group Limited 58
SIMAGCHEM CORP 58

Acid yellow 25 (c.i. 18835) Spectrum

ACID YELLOW 25 (C.I. 18835)(6359-85-9)IR

6359-85-9(Acid yellow 25 (c.i. 18835))Related Search:

Acid blue 80 Sodium nitrite Acid Black 2 Acid Brown 165 Acid Blue 168
Acid Black 107 Acid Red 57 trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-) Acid Violet 43 Acid Red 73
Acid Red 18 ACID YELLOW 11 Acid Blue 83 Acid Black 1 sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate
Acid yellow 17 Acid red 106 Acid yellow 99

1of4

sodium,4-[3-methyl-4-[[4-methyl-3-(phenylsulfamoyl)phenyl]diazenyl]-5-oxo-4H-pyrazol-1-yl]benzenesulfonate sodium 4-(3-methyl-4-(4-methyl-3-(phenylaminosulphonyl)phenylazo)-5-hydroxypyrazol-1-yl)benzenesulphonate AcidYellowER C.I.AcidYellow25 1H-Pyrazole,5-oxo-4,5-dihydro-3-methyl-4-[[3-[(phenylamino)sulfonyl]-4-methylphenyl]azo]-1-(4-sulfophenyl)-,sodiumsalt Benzenesulfonic acid, 4-4,5-dihydro-3-methyl-4-4-methyl-3-(phenylamino)sulfonylphenylazo-5-oxo-1H-pyrazol-1-yl-, monosodium salt Acid Fast Yellow ER Covanyl Yellow RN Egacid Yellow R. Mnltacid Yellow R Nylosan Yellow F-RPL Tertracid Supra Yellow R 4-[4,5-Dihydro-3-methyl-4-[[4-methyl-3-[(phenylamino)sulfonyl]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzenesulfonic acid sodium salt Triacid Fast Yellow R Vicoacid Yellow 25 Vondacid Fast Yellow R Xylene Fast Yellow RPN p-[5-Hydroxy-3-methyl-4-[[3-(phenylsulfamoyl)-p-tolyl]azo]pyrazol-1-yl]benzenesulfonic acid monosodium salt Supramine Yellow RA Tertracid Yellow R Yellow R Acid Yellow 25 (18835) AcidolYellowGE AcidYellowRN AminylYellowE-RL Benzenesulfonicacid,4-[4,5-dihydro-3-methyl-4-[[4-methyl-3-[(phenylamino)sulfonyl]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]-,monosodiumsalt C.1.AcidYellow25(18835) DiacidFastYellowR Acid Yellow 25 Dye content 40 % ACID YELLOW 25 (C.I. 18835) ISO 9001：2015 REACH C.I.Acid Yellow 25:C.I.18835 4-[3-methyl-4-[[4-methyl-3-(phenylsulfamoyl)phenyl]diazenyl]-5-oxo-4H-pyrazol-1-yl]benzenesulfonate Acid yellow 25 (c.i. 18835) 6359-85-9 C23H20N5NaO6S2 Organics A Stains and Dyes Stains&Dyes, A to