Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of BES (CAS: 10191-18-1) with high quality, commercial production. Ruifu can supply a series of biological buffers, can provide worldwide delivery, competitive price, small and bulk quantities available. Welcomed to order. Please contact: alvin@ruifuchem.com
| Chemical Name | N,N-Bis(2-Hydroxyethyl)-2-Aminoethanesulfonic Acid |
| Synonyms | BES |
| CAS Number | 10191-18-1 |
| Stock Status | In Stock, Production Scale Up to Tons |
| Molecular Formula | C6H15NO5S |
| Molecular Weight | 213.25 |
| Melting Point | 150.0~155.0℃ |
| Water Solubility | Soluble in Water, Clear, Colorless |
| COA & MSDS | Available |
| Origin | Shanghai, China |
| Product Categories | Biological Buffers |
| Brand | Ruifu Chemical |
| Item | Specifications |
| Grade | Ultrapure |
| Appearance | White Crystalline Powder |
| Purity / Analysis Method | >99.5% (Titration, on Dried Basis) |
| Melting Point | 150.0~155.0℃ |
| Water (by Karl Fischer) | <0.10% |
| Loss on Drying | <0.10% (105℃, 3 Hours) |
| Residue on Ignition | <0.10% |
| Heavy Metals (as Pb) | <5ppm |
| Solubility | Colorless and Clear (H2O Soluble 1M at 20℃) |
| A260nm (1M, H2O) | <0.095 |
| A280nm (1M, H2O) | <0.080 |
| pH (1.0% In Water 25℃) | 2.5~5.0 |
| pKa | 6.9~7.3 |
| Useful pH Range | 6.4~7.8 |
| Fe | <5ppm |
| Cu | <5ppm |
| Chloride (Cl) | <0.05% |
| Sulfate (SO42-) | <0.005% |
| Al | <5ppm |
| Infrared Spectrum | Conforms to Structure |
| X-Ray Diffraction | Conforms to Structure |
| Test Standard | Enterprise Standard |
| Usage | Biological Buffer; Good's Buffer Component for Biological Research |
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed and store in a cool, dry and well-ventilated warehouse away from incompatible substances. Protect from light and moisture. Keep away from fire and heat source.
Shipping: Deliver to worldwide by air, by sea, by FedEx / DHL Express. Provide fast and reliable delivery.
Hazard Symbols Xi - Irritant
Risk Codes
36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description
26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany 3
RTECS KI7363500
TSCA Yes
HS Code 2934999099
BES (CAS: 10191-18-1) is a zwitterionic buffer that is used in biochemistry and molecular biology research. It is one of the "Good" buffers developed in the 1960's for wide applicability to biochemical studies. BES buffer is suitable for use in systems where a calcium phosphate-DNA complex formation is desirable. BES is used as a buffer to maintain the pH of the solutions in biological experiments. BES is useful for diagnostic assay manufacturing industry. BES induces cross-linking between sulfonated polyimide chains in sulfonated polyimide membranes. BES acts as biobuffer to investigate the aqueous medium self-assembly of heterometallic CuII/Li 3D coordination polymers.