In the 1924 CI pinacyanol is listed as dyestuff 808 while Dicyanine A is listed as dyestuff 811. Pinacyanol was made by MLB but also by Illford as Sensitol Red and by other manufacturers as Quinaldine Blue which indicates its greater commercial importance at the time.  It is in fact still of some importance as a photographic sensitizer.
However when the disulfide dicyanine dye reaches the tumor site the dicyanine is cleaved by GSH into two mono-dyes with high fluorescence strength thus producing strong fluorescent signals upon excitation. The fluorescent signal of the dicyanine was enhanced by up to 27-fold after interacting with the GSH solution.
Later in Constitution of the Dicyanines (1924) Mills and Odams demonstrated dicyanine is a carbocyanin giving a formula of 24-dimethylquinoline iodoethylate and sodium methylate in methanol (for 11-diethyl-24-carbocyanine iodide). Studies
Nov 21 2002· dicyanine EINECS # 257-795-4 It looks as if no one makes dicyanin anymore however Fisher Scientific sells dicyanine. (Do a product search for dicyanine at the website to find it.) I particularly enjoyed the music and images at this site.
Dicyanine A. Naphthalene sulphonic acids. III. An alterna-tive method for the qualitative detection of naph-thalene f-7 and 1-6 disulphonic acids. J. A. AMBLER. In naphthalene sulphonic acids. II. A method for the qualitative determination of some of the naphthalene sulphonic acids by J. A. Ambler and E. T. Wherry read at the meeting of
The conditions affecting the synthesis of dicyanine-A from 6-ethoxy-2:4-dimethylquinoline ethiodide were studied and variations tried in the kind of solvent used concentration of hydroxyl·ion type of alkali catalysts water oxygen time and temperature. No solvent was found superior to ethyl alcohol but excellent results were obtained ...
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Dicyanine A Revision Date 23-Jan-2018 Quinolinium 1-ethyl-2-[3-(1-ethyl-4(1H)-quinolinylidene)-1-prope nyl]- iodide 20591-23-5 98 4. First-aid measures Eye Contact Rinse immediately with plenty of water also under the eyelids for at least 15 minutes. Skin Contact Wash off immediately with soap and plenty of water while removing all contaminated clothes and shoes.
Description Dicyanine A 98% (1g) CAS 20591-23-5 More About this Item Chemicals sold by Cole-Parmer are not intended for and should not be (i) used for medical surgical or other patient oriented applications or (ii) combined with any food product or ingested in any form.
Jul 22 2020· Dicyanin Dye is illegal because it is said to have special properties when placed between two glass planes. The resulting effect gives anyone the ability to look into the Astral Realm along with seeing a persons emanating aura. Essentially proving that another plane of reality exists. Many wonder why Dicyanin is highly restricted since it it ...
Glass slides or Kilner Screens containing alcoholic solutions of variously coloured dyes including a blue dye called dicyanin (probably Dicyanine A) were used as filters in Kilner Goggles which together with lights were held to train the eyes to perceive electromagnetic radiation outside the …4.7/5(3)
The dicyanines (dicyanine and dicyanine A to be discussed shortly) are greenish-blue dyes that give bromide silver a sensitivity that extends extraordinarily far into the red. The sensitization goes further into the red than with the sensitizing dyes known until their discovery [19 28].
1-(3-Nitrophenyl)-910-anthraquinone is also served by Leap Chem Co. Ltd. Leap Chem Co. Ltd is supplier for Dicyanine A. As a highly customer-oriented enterprise we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Dicyanine A. Zoom Image. Acros Organics. Call For Price. 2 variations of this product are available. See All Product Options Below. 2 PRODUCT OPTIONS. Compareitem specifications. CAS Number Purity Grade Weight (mL) Availability Pricing; EW-88344-15 Mfr # …Brand: Acros OrganicsOffer Count: 2