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
| 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) | ![]() 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 |
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.
Acid Yellow 49 Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | 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 | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-09-11 | Acid Yellow 49
12239-15-5
|
25kg | 1 | 20mt | Winchem industrial co limited | ||
![]() |
2020-01-13 | Acid Yellow 49
12239-15-5
|
$9.80 | 1g | ≥99% | 100kg | Career Henan Chemical Co |
-

- Acid Yellow 49
12239-15-5
- $0.00
- 1
- Winchem industrial co limited
-

- Acid Yellow 49
12239-15-5
- $9.80
- ≥99%
- Career Henan Chemical Co
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