Acid red 66
- CAS No.
- 4196-99-0
- Chemical Name:
- Acid red 66
- Synonyms
- CI 26905;NSC79710;SCARLET B;PONCEAU B;NSC 79710;NSC-79710;PONCEAU BS;BONCEAU BS;Scarlet EC;CI NO 26905
- CBNumber:
- CB2104531
- Molecular Formula:
- C22H17N4NaO7S2
- Molecular Weight:
- 536.51
- MDL Number:
- MFCD00003891
- MOL File:
- 4196-99-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 181-188 °C |
|---|---|
| Flash point | 300°(572°F) |
| storage temp. | room temp |
| solubility | ethanol: 1 mg/mL |
| form | Powder |
| Colour Index | 26905 |
| color | Dark brown powder |
| Water Solubility | Appreciable (> 10%) |
| λmax | 505 nm |
| BRN | 3883900 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application |
diagnostic assay manufacturing hematology histology |
| InChIKey | VVAVKBBTPWYADW-RVTJCSDESA-L |
| SMILES | [Na+].[Na+].Oc1ccc2ccccc2c1\N=N\c3ccc(cc3S([O-])(=O)=O)\N=N\c4ccc(cc4)S([O-])(=O)=O |
| CAS DataBase Reference | 4196-99-0 |
| EPA Substance Registry System | C.I. Acid Red 66, disodium salt (4196-99-0) |
| UNSPSC Code | 12171500 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| Hazard Codes | Xi,Xn |
| Risk Statements | 36/37/38-20/21/22 |
| Safety Statements | 37/39-26-36 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HS Code | 32041200 |
| Storage Class | 11 - Combustible Solids |
Acid red 66 price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | B6008 | Ponceau BS Dye content ~60 % | 4196-99-0 | 25g | $37.6 | 2026-04-30 | Buy |
| Usbiological | 235519 | Biebrich Scarlet 98+% - ≥98% | 4196-99-0 | 25g | $163 | 2026-06-03 | Buy |
| Usbiological | 235519 | Biebrich Scarlet 98+% - ≥98% | 4196-99-0 | 100g | $186 | 2026-06-03 | Buy |
| Usbiological | 235519 | Biebrich Scarlet 98+% - ≥98% | 4196-99-0 | 250g | $265 | 2026-06-03 | Buy |
| Usbiological | 235519 | Biebrich Scarlet 98+% - ≥98% | 4196-99-0 | 1Kg | $555 | 2026-06-03 | Buy |
Acid red 66 Chemical Properties,Uses,Production
Chemical Properties
dark red powder
Uses
Ponceau BS has been used in Masson′s trichrome stain for the staining of collagen. It has also been used for eosinophil staining.
Definition
ChEBI: An organic sodium salt having 2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfonatophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used as a plasma stain in Masson's trichrome.
Preparation
3,4′-Disulfo-4-aininoazobenzenediazo, and Naphthalen-2-ol coupling.
Biochem/physiol Actions
Ponceau BS is used in Masson′s trichrome staining procedure, along with acid fuchsin, for the labeling of collagen and muscle red.
Properties and Applications
yellow light red. Soluble in water for orange red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. In the dark for the strong sulfuric acid, diluted for orange red, then have a brown precipitation. In nitric acid solution for blue, then into amber color. In water solution to join strong hydrochloric acid have red precipitate; Add thick sodium hydroxide solution have yellow brown precipitation.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3-4 | 3-4 | 3 | 5 | ||||
| AATCC | 4 | 4 | 2 | 3 | 1 | 4 | ||
Acid red 66 Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 | sj_scrc@sinopharm.com | China | 9791 | 79 |
| ShangHai YuanYe Biotechnology Co., Ltd. | 15026964105 | shyysw007@163.com | China | 4998 | 60 |
| Chengdu Ai Keda Chemical Technology Co., Ltd. | 4008-755-333 18080918076 | 800078821@qq.com | China | 9706 | 55 |
| Thermo Fisher Scientific | 800-810-5118 | cnchemical@thermofisher.com | China | 17752 | 75 |
| Beijing HuaMeiHuLiBiological Chemical | 010-56205725 | waley188@sohu.com | China | 12323 | 58 |
| 9ding chemical ( Shanghai) Limited | 4009209199 | sales@9dingchem.com | China | 22497 | 55 |
View Lastest Price from Acid red 66 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-07 | Acid red 66
4196-99-0
|
$1.00-50.00 | 1KG | 99% | 200000KG | Shaanxi Dideu Medichem Co. Ltd |
-
- Acid red 66
4196-99-0
- $1.00-50.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
