ACID YELLOW 25 (C.I. 18835)

Product Name: ACID YELLOW 25 (C.I. 18835)
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: C23H20N5NaO6S2
Formula Weight: 549.55457
MOL File: 6359-85-9.mol

More

Less

ACID YELLOW 25 (C.I. 18835) Property

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
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
EPA Substance Registry System: C.I. Acid Yellow 25 (6359-85-9)

More

Less

Safety

WGK Germany: 3

More

Less

Hazard and Precautionary Statements (GHS)

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 201960
Product name: Acid Yellow 25
Purity: Dye content 40%
Packaging: 10g
Price: $77.8
Updated: 2025/07/31

TRC

Product number: A795303
Product name: Acid Yellow 25
Packaging: 1g
Price: $55
Updated: 2021/12/16

Chem-Impex

Product number: 41897
Product name: AcidYellow25,≥40%(Dyecontent),suitableforHematology&Histology
Purity: ≥40%(Dyecontent)
Packaging: 10G
Price: $61.73
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: DYE0000111
Product name: ACID YELLOW 25
Purity: 95.00%
Packaging: 10G
Price: $1126.65
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: DYE0000111
Product name: ACID YELLOW 25
Purity: 95.00%
Packaging: 100G
Price: $2601.35
Updated: 2021/12/16

More

Less

ACID YELLOW 25 (C.I. 18835) Chemical Properties,Usage,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-phenylbenzenesulfonamide?diazo, 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
Standard	Light Fastness	Fading	Stain	Persperation Fastness	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

More

Less

ACID YELLOW 25 (C.I. 18835) Suppliers

China 44 Germany 1 India 1 Switzerland 1 United Kingdom 1 United States 3 Global 51

Shanghai Baoyang Baoxin Biotechnology Co., LTD

Tel: 021-56698539 19921169802
Email: bxsw_sh@163.com
Country: China
ProdList: 3917
Advantage: 58

Alfa Chemistry

Tel: 1-516-6625404
Fax: 1-516-927-0118
Email: support@alfa-chemistry.com
Country: United States
ProdList: 9171
Advantage: 60

Shanghai YuanYe Biotechnology Co., Ltd.

Tel: 021-61312847; 18021002903
Fax: QQ:3008007432
Email: 3008007409@qq.com
Country: China
ProdList: 71826
Advantage: 60

Shandong Xiya Chemical Co., Ltd.

Tel: 4009903999 13395398332
Fax: 0539-6365991
Email: sales@xiyashiji.com
Country: China
ProdList: 20794
Advantage: 60

Shanghai Orgchem Co.,Ltd.

Tel: +86-21-5877 1921
Fax: +86-21-5877 1925
Email: info@chemofchina.com
Country: China
ProdList: 9653
Advantage: 55

Zhengzhou Acme Chemical Co., Ltd.

Tel: 0371-037163312495,13303845143 13303845143
Fax: QQ3001379618
Email: 3001379618@qq.com
Country: China
ProdList: 10267
Advantage: 58

Hefei TNJ Chemical Industry Co.,Ltd.

Tel: +86-0551-65418671 +8618949823763
Fax: 0551-65418697
Email: sales@tnjchem.com
Country: China
ProdList: 34563
Advantage: 58

Dideu Industries Group Limited

Tel: +86-29-89586680 +86-15129568250
Email: 1026@dideu.com
Country: China
ProdList: 20284
Advantage: 58

SIMAGCHEM CORP

Tel: +86-5922680277 +86-13806087780
Email: sale@simagchem.com
Country: China
ProdList: 17346
Advantage: 58

Hubei xin bonus chemical co. LTD

Tel: 86-13657291602
Fax: 027-59338440
Email: linda@hubeijusheng.com
Country: CHINA
ProdList: 22963
Advantage: 58

6359-85-9, ACID YELLOW 25 (C.I. 18835)Related Search:

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

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 (C.I. 18835)

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

6359-85-9

C23H20N5NaO6S2

Organics

A

Stains and Dyes

Stains&Dyes, A to