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| CAS No.: | 51023-76-8 |
|---|---|
| Name: | SITS |
| Molecular Structure: | |
|
|
|
| Formula: | C17H12N2O7S3 |
| Molecular Weight: | 498.460920 |
| Synonyms: | Benzenesulfonicacid, 5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, disodiumsalt (9CI);Disodium 4-acetamido-4'-isothiocyanatostilbene-2,2'-disulfonate;SITS;4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid disodium salt hydrate; |
| EINECS: | 256-919-4 |
| Density: | 1.52g/cm3 |
| Melting Point: | >300°C (dec.) |
| Appearance: | Light Yellow Solid |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 22-36/37/38-42 |
| Safety: | 22-26-36/37 |
| PSA: | 204.71000 |
| LogP: | 4.59250 |
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Specification
The Benzenesulfonic acid,5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, sodium salt(1:2), with CAS registry number 51023-76-8, is known as 4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid disodium salt hydrate. It belongs to the product categories of Fluorescent Labels & Indicators. Its EINECS registry number is 256-919-4. This chemical's molecular formula is C17H12N2O7S3 and molecular weight is 498.460920. What's more, both its IUPAC name and systematic name are the same which is called Disodium 5-acetamido-2-[(E)-2-(4-isothiocyanato-2-sulfonatophenyl)ethenyl]benzenesulfonate. This chemical should be stored at temp of 2-8 °C.
Physical properties about Benzenesulfonic acid,5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, sodium salt(1:2) are: (1)ACD/BCF (pH 5.5): 1; (2)ACD/BCF (pH 7.4): 1; (3)ACD/KOC (pH 5.5): 1; (4)ACD/KOC (pH 7.4): 1; (5)#H bond acceptors: 9; (6)#H bond donors: 3; (7)#Freely Rotating Bonds: 6; (8)Polar Surface Area: 195.92 Å2.
Uses of Benzenesulfonic acid,5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, sodium salt(1:2): (1) it is used as a fluorescent label for the specific and reversible labelling of the outer components of the plasma membrane; (2) The reagent reacts with a fixed number of sites on the surface of cells concerned with anion permeation; does not pass through the osmotic barrie.
When you are dealing with Benzenesulfonic acid,5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, sodium salt(1:2), you should be very careful. This chemical is irritating to eyes, respiratory system and skin. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. And in case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. In addition,it is very toxic by inhalation and may cause sensitisation by inhalation.So do not breathe dust in order not to cause damage to health.