4,4-Bis(4-amino-1-naphthylazo)-2,2-stilbenedisulfonic acid (DABS) is used as an indicator for the determination of organic acid anhydrides by the morpholine method. An azo dye originally synthesized by reacting 1-naphthol with 4-aminodiphenylamine. The color of DABS varies according to the pH. It can be obtained as either a red or blue compound at pH > 7 and as a yellow compound at pH 7. DABS interacts with human recombinant proteins, such as collagen and endoplasmic reticulum, and is capable of binding to the surface of cells. This dye also shows biological properties that are similar to those of phenothiazines when it is used in biochemical experiments involving recombinant human proteins. Synonyms: 2,2-(1,2-Ethenediyl)bis[5-[2-(4-amino-1-naphthalenyl)diazenyl]benzenesulfonic Acid, 4,4-Bis[(4-amino-1-naphthyl)azo]-2,2-stilbenedisulfonic Acid, NSC 5067, DABS, 5-[(E)-(4-aminonaphthalen-1-yl)diazenyl]-2-[(E)-2-[4-[(E)-(4-aminonaphthalen-1-yl)diazenyl]-2-sulfophenyl]ethenyl]benzenesulfonic acid CAS No: 5463-64-9 Molecular Formula: C34H26N6O6S2 Molecular Weight: 678.74 Appearance: Purple to black powder Purity: 85% MS: Conforms to reference Melting Point: >300C Solubility: Aqueous Base (Slightly), Basic Methanol (Slightly) Storage and Stability: Store at 4C under inert atmosphere. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
Molecular Weight:
678.74
Purity:
85%
Form:
Purple to black powder
CAS Number:
[5463-64-9]
* VAT and and shipping costs not included. Errors and price changes excepted
