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Acid Yellow 49

CAS No.
12239-15-5
Chemical Name:
Acid Yellow 49
Synonyms
Acid Yellow 49;Yellow NFG;Acid Yellow NFG;C.I.AcidYellow49;Reaxys ID: 6013923;Kayanol Yellow NFG;Supracen Yellow GR;Aminyl Yellow E-3GL;Nylosan Yellow E-4G;Acid Fast Yellow NFG
CBNumber:
CB1874886
Molecular Formula:
C16H13Cl2N5O3S
Molecular Weight:
426.28
MDL Number:
MFCD00071836
MOL File:
12239-15-5.mol
Last updated:2026-05-27 23:49:27

Acid Yellow 49 Properties

Boiling point 613.74℃[at 101 325 Pa]
Density 1.62[at 20℃]
vapor pressure 0Pa at 25℃
pka -2.18±0.50(Predicted)
Water Solubility 273.4μg/L at 25℃
InChI InChI=1S/C16H13Cl2N5O3S/c1-9-15(16(19)23(22-9)10-5-3-2-4-6-10)21-20-13-7-12(18)14(8-11(13)17)27(24,25)26/h2-8H,19H2,1H3,(H,24,25,26)
InChIKey QHVBDWZOQBMLLW-UHFFFAOYSA-N
SMILES C1(S(O)(=O)=O)=CC(Cl)=C(N=NC2=C(N)N(C3=CC=CC=C3)N=C2C)C=C1Cl
LogP 1.702 at 25℃
CAS DataBase Reference 12239-15-5
EPA Substance Registry System C.I. Acid Yellow 49 (12239-15-5)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P
TSCA  TSCA listed
REACH Registrations Inactive

Acid Yellow 49 price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
aablocks AA01DNPQ 4-[2-(5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid 12239-15-5 1g $170 2026-05-29 Buy
AK Scientific T213 AcidYellow49,tech. 12239-15-5 1g $148 2021-12-16 Buy
American Custom Chemicals Corporation DYE0000117 ACID YELLOW 49 95.00% 12239-15-5 5MG $505.63 2021-12-16 Buy
Product number Packaging Price Buy
AA01DNPQ 1g $170 Buy
T213 1g $148 Buy
DYE0000117 5MG $505.63 Buy

Acid Yellow 49 Chemical Properties, Uses, Production

Chemical Properties

When dyeing, the color becomes slightly darker when encountering copper or iron ions.

Uses

C.I. Acid yellow 49 is an acidic yellow dye that can be adsorbed and removed by bentone.

Preparation

4-Amino-2,5-dichlorobenzenesulfonic acid diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5-aminecoupling.

Flammability and Explosibility

Not classified

Properties and Applications

brilliant yellow. This applies to goods wool, silk, polyamide fiber and wool blended fabric dyeing, good levelness and also can be used for leather color.

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

References

[1] Baskaralingam P, Pulikesi M, Elango D, et al. Adsorption of acid dye onto organobentonite[J]. Journal of hazardous materials, 2006, 128(2-3): 138-144.

Global Suppliers ( 91)
Supplier Tel Email Country ProdList Advantage
GAOYOU HENGSHENG CHEMICAL.CO.,LTD 13505274666 362708594@qq.com China 13 58
Winchem Industrial Co. Ltd 0574-83851061 info@win-chemical.com China 500 55
The future of Shanghai Industrial Co., Ltd. 021-61552785 sales@shshiji.com China 9531 55
Shanghai JONLN Reagent Co., Ltd. 400-0066400 13621662912 422131432@qq.com China 9970 55
Shanghai YuLue Chemical Co., Ltd. 021-60345187 13671753212 lzz841106@aliyun.com China 10244 55
Hangzhou Sunshine Chemicals Co., Ltd 0086-571-88523165 wangjf@aciddyes.com China 98 62
Alfa Chemistry 1-516-6625404 support@alfa-chemistry.com United States 9170 60
Shijiazhuang Yesheng Chemical Technology Co., Ltd 18031147013 18031147013; yeshengchemical@163.com China 2673 58
Shanghai Orgchem Co.,Ltd. +86-21-5877 1921 info@chemofchina.com China 9630 55
Nanjing FNAT Chemical Co.,Ltd. +86-25-86442672 13451895519 amywang@fnatchem.com China 69 58

View Latest Price from Acid Yellow 49 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Acid Yellow 49 pictures 2026-09-11 Acid Yellow 49
12239-15-5
25kg 1 20mt Winchem industrial co limited
Acid Yellow 49 pictures 2020-01-13 Acid Yellow 49
12239-15-5
$9.80 1g ≥99% 100kg Career Henan Chemical Co
Reaxys ID: 6013923 2,5-dichloro-4-[(2Z)-2-(5-imino-3-methyl-1-phenylpyrazol-4-ylidene)hydrazinyl]benzenesulfonic acid 4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]-2,5-dichlorobenzenesulphonic acid Benzenesulfonic acid, 4-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo-2,5-dichloro- 2,5-Dichloro-4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]benzenesulfonic acid 4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]-2,5-dichloro-Benzenesulfonic acid C.I.AcidYellow49 Acid yellow 49 (C.I. 18640) Acid Fast Yellow NFG Aminyl Yellow E-3GL Apollo Nylon Fast Yellow FGL Concorde Acid Yellow NFG Derma Fur Yellow 3G 200 Everacid Yellow 4NGL Hispalon Yellow B-GRL Kayanol Yellow NFG Kenamide Yellow KFGL Nylanthrene Brilliant Yellow Nylosan Yellow E-4G Supracen Yellow GR Telon Light Yellow FG Unitertracid Light Yellow G Vilmacid Fast Yellow E4GK. Yellow NFG QHVBDWZOQBMLLW-QZQOTICOSA-N Benzenesulfonic acid, 4-[2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichloro- 2,5-dichloro-4-[(2Z)-2-(5-imino-3-methyl-1-phenylpyrazol-4-ylidene)hydrazinyl]benzenesulfonicaci Acid Yellow 49 ISO 9001:2015 REACH C.I.Acid Yellow 49:C.I.18640 4-[2-(5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid Acid Yellow 49 Acid Yellow NFG 12239-15-5 C16H12Cl2N5NaO3S C16H13Cl2N5O3S Organics