CF 351
2,2'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethenediyl)bis-benzenesulfonic acid disodium salt
CAS: 27344-41-8
Molecular Formula: C28H23NaO6S2
CF 351 - Names and Identifiers
| Name | 2,2'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethenediyl)bis-benzenesulfonic acid disodium salt |
| Synonyms | CF 351 tinopalcbs Calcofluor CG Brightener CBS-X fluorescent brightener cbs-x Optical Brightening Agent CBS-X 4,4'-Bis(2-Sodiosulfostyryl)biphenyl disodium4,4'-bis(2-sulfostyryl)biphenyl 4,4'-Bis(o-sulfostyryl)biphenyl DisodiuM Salt 4,4'-Bis-(2-sulfostyryl)-biphenyl disodium salt DisodiuM 4',4''-Bi[stilbene-2,2'''-disulfonate] 2,2'-(4,4'-biphenylylenedivinylene)di-benzenesulfonicacidisodiumsalt 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-benzenesulfonicaci disodium 2,2'-[biphenyl-4,4'-diyldi(Z)ethene-2,1-diyl]dibenzenesulfonate disodium 2,2'-[biphenyl-4,4'-diyldi(E)ethene-2,1-diyl]dibenzenesulfonate 2,2'-([1,1'-biphenyl]-4,4'-diyldi-2,1-ethenediyl)bis-benzenesulfonicacidi 2,2'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethenediyl)bisbenzenesulfonic Acid SodiuM Salt Benzenesulfonicacid,2,2'-[(1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl]bis-,disodiumsalt 2,2'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethenediyl)bis-benzenesulfonic acid disodium salt |
| CAS | 27344-41-8 |
| EINECS | 248-421-0 |
| InChI | InChI=1/C28H22O6S2.2Na/c29-35(30,31)27-7-3-1-5-25(27)19-13-21-9-15-23(16-10-21)24-17-11-22(12-18-24)14-20-26-6-2-4-8-28(26)36(32,33)34;;/h1-20H,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2/b19-13-,20-14-; |
| InChIKey | PMPJQLCPEQFEJW-HPKCLRQXSA-L |
CF 351 - Physico-chemical Properties
| Molecular Formula | C28H23NaO6S2 |
| Molar Mass | 542.6 |
| Density | 1.414 |
| Melting Point | >300°C (dec.) |
| Water Solubility | 17.6g/L at 20℃ |
| Solubility | DMSO (Sparingly), Methanol (Slightly), Water (Slightly) |
| Appearance | Solid |
| Color | Pale Green to Green |
| Storage Condition | 存放在阴凉、干燥的库房内，避光，贮存期24个月。产品运输时应避免碰撞和曝晒。 |
| Physical and Chemical Properties | The appearance is yellow crystalline powder. Melting point>300 ℃, relative density 1.414. It has an efficient whitening effect on cellulose fibers in cold and warm water, and repeated washing will not cause fabric yellowing or discoloration. It has excellent stability, resistance to chlorine bleaching, oxygen bleaching, and strong acid and alkali properties in highly concentrated liquid detergents and heavy scale fluid detergents. Non toxic side effects. |
| Use | It is mainly used for whitening of synthetic detergent, soap and soap, and can also be used for whitening of cotton and cotton, nylon wool and paper. It is suitable for whitening of cotton, polyester and cotton blended fabrics and one bath whitening of cotton blended fabrics; widely used in detergent, bleaching and dyeing, papermaking, dye and other industries |
| Caution | Basically non-toxic. It will not cause acute toxic harm to the human body within the concentration range commonly used. |
CF 351 - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| HS Code | 29049090 |
CF 351 - Upstream Downstream Industry
CF 351 - Preparation method
Open Data Verified Data
1. Esterification reaction
4,4 '- Dichloromethylbiphenyl was esterified with triethyl phosphite at 160 ° C to obtain 4,4' - bis (diethylphosphonyl methyl) biphenyl.
2. Condensation reaction
4,4 '- bis (diethylphosphonyl) biphenyl is uniformly mixed with dimethyl sulfoxide and sodium benzaldehyde orthosulfonate. Sodium methoxide is used as a catalyst for condensation reaction at 45-50 ℃, and the product is obtained after treatment.
Last Update：2023-12-21 13:17:19
CF 351 - Reference Information
| LogP | -2.32 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | suitable for whitening of cotton, polyester-cotton blended fabric and one-bath whitening of cotton blended fabric widely used in detergent, bleaching and dyeing, papermaking, dye and other industries mainly used for whitening of synthetic detergent, soap and soap, and also used for whitening of cotton, linen, nylon, wool and paper; suitable for whitening cotton, polyester-cotton blended fabrics and one-bath whitening of cotton blended fabrics; widely used in detergents, bleaching and dyeing, papermaking, dyes and other industries |
Last Update：2024-04-10 22:29:15
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View History
Raw Materials for CF 351