Clayton yellow (Thiazole yellow).
Synonyms: Direct Yellow 9, Titan yellow, Thiazole Yellow G, Mimosa.
To make 1.0% (w/v) aqueous solution for color range pH 12.2 (yellow) to pH 13.2 (amber).
Forensics Lab Supply Number 0113117.
Formerly Grau-Hall Corporation dba Grau-Hall Scientific.
The quantity of 1 gram is offered for those who require only the least amount of an item, especially for mixing up a stock solution. If a greater amount is required, a lower price per gram can be worked out, depending upon available supply. Place an order for the number of grams that are needed, and add a note to contact you by email before processing an order so that a price may be agreed upon.
MSDS is at http://physchem.ox.ac.uk/MSDS/CL/clayton_yellow.html