Product Short Description: Auramine O is Basic yellow 2 is a diarylmethane dye used as a fluorescent stain.
Product Technical Specification:
Specifications:
MOLECULAR FORMULA
C17H21N3·HCl
MOLECULAR WEIGHT
303.83
COLOUR
CRUDE YELLOW POWDER
DYE CONTENT
85 %
ABSORPTION MAXIMUM λ (ph 6.0)
431-433 nm
ABSORPTIVITY (A 1%/1cm λ MAX ph 6.0 ON DRIED MATERIAL
850-1000
SUITABILITY FOR MICROSCOPY
PASSES TEST
LOSS ON DRYING AT 1100 C
MAX 2 %
Remarks:
Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Separate from incompatibilities. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Product Short Description: THYMOLPHTHALEIN ACS GRADE chemicals name is 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-2-benzofuran-1(3H)-one
Product Technical Specification:
C.A.S. No.
125-20-2
M.F.
C28H30O4
M.W.
430.54gm/mole
Specifications:
Transition range
pH 9.3-10.5
Colorless-Blue
Solubility 0.1 % (95% EtOH)
Clear solution
Absorption maximum (0.1N NaOH) ?max
592-596nm
Absorptivity (A1%/1cm at 0.1NNaOH, at ?max)
>1000
Loss on drying (110°C)
<1%
Remarks:
InChI Key : LDKDGDIWEUUXSH-UHFFFAOYSA-N
Thymolphthalein acts as pH indicator, as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust. . Also used to model communicable disease transmission and the importance of lab cleanliness.Thymolphthalein was suitable as indicator during titration of hyamine hydroxide. It is suitable in preparing disappearing ink.