Gentian (Crystal) Violet Back Catalog number: 72171 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73677 3,6-Dichloropyridazine Price on request 40022 EPA Method 627 - Analytes Price on request L429-PAR Method 429 Native PAH Stock Solution, 1.2ml, isooctane Price on request