Marquis reagent — Methylphenidate
White · Yellow
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): light orange
Methylphenidate reagent analysis
There are more substances than colors, so to increase analysis precision use a kit with multiple reagents. Exact color of a reaction depends on adulteration, quantity, lighting, temperature, exposure to air, storage, as well as reagent quality and degradation. Positive or negative result does not indicate if a substance is safe. No substance is 100% safe.
Methylphenidate
methylphenidate · Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin) · Concerta · Methylin · Ritalin · Equasym XL · mph · biphentin
Mandelin reagent — Methylphenidate
Yellow · Orange · Red · Brown · Yellow
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): short reddish
Liebermann reagent — Methylphenidate
White · Yellow · Orange
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): yellow - orange
Froehde reagent — Methylphenidate
White · Yellow
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): no color change -> Tan
Simon's reagent — Methylphenidate
Orange · Purple
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): pale violet
Hofmann reagent — Methylphenidate
No reaction
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): no color change
Scott reagent — Methylphenidate
No reaction
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): no color change
Zimmermann reagent — Methylphenidate
White · Purple
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): slow purple
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.