"Ammonium Chloride"

Supplier: VWR Chemicals

Basic Violet 3 solution Reag. Ph. Eur. 1022901

Supplier: SIGMA ALDRICH MICROSCOPY

Mixture of crystal violet [C.I.No. 42555] and methyl violet [C.I.No. 42535]. Dye employed for preparing Gram stain.

Supplier: Thermo Fisher Scientific

Basic Violet 3 ACS

Supplier: MP Biomedicals

It has been reported that benzalkonium chloride inactivates HIV and HSV in vitro.

Supplier: Thermo Fisher Scientific

Basic Violet 3, certified

Supplier: Thermo Fisher Scientific

Basic Violet 3, pure, high purity biological stain

Supplier: Merck

The Gram staining allows a fast differentiation of bacteria in Gram-positive and Gram-negative.

Supplier: VWR Chemicals

Indicator tablets for determination of water hardness by titration with EDTA.

Specifications
Minimum weight: ≥ 0.20 g
Maximum weight: ≤ 0.23 g
Disintegration time (at 25°C): ≤ 150 s
Application test: conforms

The tablets are dissolved in 100 ml of the water sample to be tested, which has been buffered at pH 10 with 1 ml of Ammonia/ Ammonium chloride buffer solution, and then titrated with EDTA solution (0,01 M) till the sample turns from red to blue.
Total hardness in mg/l = 10×ml of titrant used.

Control samples of  calcium carbonate should be used to calibrate the method.

Supplier: Merck

Spectroquant® CombiCheck-opløsninger er brugsklare multiparameterstandarder til hele Spectroquant® testsystemernes anvendelsesområde. Hver pakke indeholder en standardopløsning og en spike-opløsning. Begge opløsninger kan anvendes til kvalitetskontrol som de er, uden fortynding.

Supplier: MP Biomedicals

Chloride ≤0,002% Iron ≤2 ppm sulphate ≤0,002%

Supplier: Spectrum Chemical

Benzalkonium Chloride Solution, 50 Percent, NF is used in the pharmaceutical industry as an antimicrobial preservative, antiseptic, disinfectant, solubilising agent, and wetting agent. Spectrum Chemical NF products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

Supplier: Abcam

Crystal Violet Solution ab246820 is the standard dye for staining gram positive bacteria.

Supplier: SIGMA ALDRICH MICROSCOPY

Crystal violet has been used to determine cell viability. It has been used in the staining of cells for the quantification of cellular migration.

Supplier: SIGMA ALDRICH MICROSCOPY

Crystal violet solution for use in Brown-Hopps method for Gram-positive and Gram-negative bacterial staining.
Crystal violet solution has been used as a stain in cell proliferation assays, migration assays and Boyden chamber assay.

Supplier: Abcam

Cation-based violet dye. Interacts with aqueous KI - I₂ during Gram staining to produce a precipitate. Histological stain for Gram-positive bacteria and DNA. Shows antibacterial, antifungal, and anthelmintic effects in vivo.

Supplier: SIGMA ALDRICH MICROSCOPY

Gram’s crystal violet solution, also known as gentian violet or hexamethyl pararosaniline, is a basic, cationic, acidotropic aminoarylmethane dye. It is a hexa-N-methylated triaminotriphenylmethane with a moderately sized lipophilic cation and a slightly nonplanar conjugated system. It is used in bacteriology as the primary stain in Gram staining to differentiate Gram-positive and Gram-negative bacteria. It is known to possess antibacterial and antifungal properties.