Synthetic-Dyes

Acid Blue FCF

Acid Blue 9 C.I. No. 42090 CAS No. 2650-18-2 Molecular Formula : C37H34N2Na2O9S3 Molecular Weight : 792.85 Shade: Bright Greenish Blue Type of Dye : Acid Dye Chemical Class : Triphenylmethane Description : Bluish Powder Hue : Bright Greenish Blue Solubility gpl at RT : 200 ? 225 Insoulubles % : 0.1- 0.2 pH of 2.0 % Soln : 6.0 - 7.0 Strength - Reflectance : 100 +/ - 2 % dE : 0.5 +/ - 0.2 Wavelength of Max. Absorption nm : 630 Foaming : Nil Dusting Property : Dedusted Moisturer content % : 6-May Heavy Metals -- Lead ppm : < 10 Arsenic ppm : < 03 Chromium ppm : <10 Manganese ppm : <50 Dischargeability : Good Uses ---- Dyeing of Textiles : Wool, Silk Non- Textiles : Paper, Wood Stain, pond dyes

Allura Red AC Dye

Allura Red AC Dye is a red azo dye. It is used as a food dye and has the E number E129. Allura Red AC was originally introduced in the United States.It has the appearance of a dark red powder. Allura Red AC usually comes as a sodium salt, but can also be used as both calcium and potassium salts. It is soluble in water; in solution, its maximum absorbance lies at about 504 nm.Allura Red AC has fewer health risks associated with it in comparison to other azo dyes.

Amaranth

Amaranth is a dark red to purple azo dye used as a food dye and to color cosmetics. The name was taken from amaranth grain, a plant distinguished by its red color and edible protein-rich seeds. Amaranth is an anionic dye. It can be applied to natural and synthetic fibers, leather, paper, and phenol-formaldehyde resins. As a food additive it has E number E123. Amaranth usually comes as a trisodium salt. It has the appearance of reddish-brown, dark red to purple water-soluble powder that decomposes at 120 °C without melting. Amaranths water solution has absorption maximum at about 520 nm.

Brilliant Blue

Brilliant Blue is a synthetic food colorant (aka artificial color) with a greenish-blue hue used to color beverages, dairy powders, jellies, candies, condiments, icings, syrups, extracts, and many drugs and cosmetics. Brilliant Blue is also used to color paper or paper board that comes into contact with foods. It is often used together with FD&C Yellow No. 5 to make green food coloring. Brilliant Blue is manufactured by a condensation reaction of benzaldehyde-o-sulfonic acid and α-(N-ethylanilino)-m-toluenesulfonic acid. Brilliant Blue is very soluble in water, glycerol, and glycol, and slightly soluble in ethanol. Brilliant Blue is stable in a wide range of pH.

Carmoisine

Carmoisine is a synthetic red food dye from the azo dye group. It usually comes as a disodium salt. Carmoisine is a red to maroon powder. It is used for the purposes where the food is heat-treated after fermentation.

Disperse Blue 301 Industrial Grade

Alfa Chemistry offers an extensive catalog of building blocks, reagents, catalysts, reference materials, and research chemicals in a wide range of applications. We supply Disperse Blue 301 (CAS:105635-65-2). More information please visit the website: http://www.alfa-chemistry.com/disperse-blue-301-cas-105635-65-2-item-33324.htm

Erythrosine

Erythrosine, also known as Red No. 3, is an organoiodine compound, specifically a derivative of fluorone. It is cherry-pink synthetic, primarily used for food coloring. Erythrosine is the disodium salt of 2,4,5,7-tetraiodofluorescein. Its maximum absorbance is at 530 nm in an aqueous solution, and it is subject to photodegradation.Erythrosine used as a printing inks, biological stain,dental plaque disclosing agent,sensitizer for orthochromatic photographic films.Erythrosine is commonly used in sweets such as some candies and popsicles, and even more widely used in cake-decorating gels. It is also used to color pistachio shells.

Giemsa's Stain A.C.S. Above 90%

PRODUCT NAME     :           GIEMSA'S STAIN

CAS No                      :           51811 - 82 – 6

Appearance               :           Dark green powder  

Structure                    :

Batch No                    :           GS – 08/37

Mfg Date                    :           Aug -2017

Exp Date                    :           July- 2023

TEST                                                  LIMITS                                             RESULTS

Solubility 0.1% (MeOH)                    Almost clear blue solution with      Passes test

                                                            greenish fluorescence

Absorptivity 1%/ 1cm,         

at 'A max. 523.40nm                         (> 600)                                                           780

at 'A max. 647.60 nm                                    (> 950)                                                           1131   

Loss on drying at 105°C (lhr) -        (<10%)                                                            6.69% 

Suitability for Microscopy                                                                           Passes Test

Remarks :     The above sample conforms to standard specifications

alcian blue 8gx A.C.S. Above 90%

PRODUCT NAME     :           ALCIAN BLUE 8GX

Synonyms                  :           Ingrain Blue 1

CAS NO.                    :           33864-99-2

C.I. NO.                       :           74240

Molecular Formula   :           C₅₆H₆₈Cl₄CuN₁₆S₄ 

Molecular Weight      :           1298.88

Appearance               :           Dark blue powder

Structure                    :

Mfg                             :           SEP : 2017

EXP                             :           AUG: 2022

BATCH NO.               :           AB1709

TESTS                                                LIMITS                                                RESULTS

Solubility                                Dark Blue Solution @ 4MG

                                                Plus 4 mL of water                            Complies

Absorption l max.                610-630                                               620

612nm in water

Dye Content:                        50-65%                                               58.20%

( by uv spectrophotometer) 

basic fuchsin A.C.S. Above 90%

PRODUCT NAME     :           BASIC FUCHSIN

Synonyms                  :           Basic Violet 14

CAS NO.                    :           632-99-5

C.I. NO.                       :           42510

Chemical Formula    :           C₂₀H₂₀CIN₃

Molecular Weight      :           337.86gm/mole

Appearance               :           Green Crystalline Powder

Structure

BATCH NO.               :           F1802

MFG DATE                :           Feb 2018

EXP DATE                 :           Jan 2023

TESTS                                                                        LIMITS                        RESULTS

Absorption Max.                                           547nm-553nm            551.80nm

Absorptivity (A1%,1cm, In 50% EtOH)       MIN.2000                    2.281

Loss On Drying 110⁰C (1hr.)                       < 8 %                           4.30%                                     

Insoluble in G 4 Crucible                             0.50 % MAX.              0.10%                         

Ph (1g + 99 ml water)                                   5.00 TO 7.00               5.60                                        

Remarks :      The above sample conforms to standard specifications