LIGHT GREEN SF YELLOWISH

Chemical properties

deep purple powder, crystals or crystalline powder

The Uses of LIGHT GREEN SF YELLOWISH

Light Green SF Yellowish is an acid dye, and a water pollutant. Oxidation of light green SF yellowish results in colour loss, making it an excellent indicator in the detection of trace cerium. Dyes and metabolites.

The Uses of LIGHT GREEN SF YELLOWISH

As dye, biological stain.

Background

Light green SF yellowish is a green triarylmethane dye that is used in the preparation of the staining solution which is widely used as a counterstain. It is used in histological applications and other labratory settings, and usually exists as a disodium salt. The maximum absorption of light green SF yellowish is at 630 (422) nm. Although it has been used as a food colorant, it was discontinued from the market due to low popularity which are possibly due to low durability of the dye and increased tendency of the dye to fade. Light green SF yellowish is also available as sterile strips used as a diagnostic agent when superficial corneal or conjunctival tissue change is suspected.

Definition

ChEBI: An organic sodium salt having 3-[(ethyl{4-[(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)(4-sulfonatophenyl)methylidene]cyclohexa-2,5-dien-1-ylidene}azaniumyl)methyl]benzene-1-sulfonate as the counterion. It is the standard dye in North American for sta ning collagen and is also used extensively in plant histology.

Preparation

Benzaldehyde (1 Moore) and N-benzyl-N-ethylbenzenamine (2 Moore) condensation, and then three stlfonation, and will product oxidation and will last them into sodium salt.

Metabolism

Not Available

Properties and Applications

green. SAP green powder. Easy to dissolve in water (a blue light green), and very difficult to soluble in alcohol. Strong sulfuric acid in orange, yellow is diluted. Dye with sodium hydroxide solution nearly colorless, has the purple precipitation.