MilliporeSigma
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TX0875

Supelco

Toluidine Blue O

Meets Reagent Specifications for testing USP/NF monographs

Synonym(s):
Basic Blue 17, Toluidine Blue O
Empirical Formula (Hill Notation):
C15H16N3S · Cl
CAS Number:
Molecular Weight:
305.83
Colour Index Number:
52040
MDL number:
EC Index Number:
202-146-2

form

powder

pH

2.8 (25 °C in H2O)

solubility

30 g/L

shipped in

ambient

storage temp.

10-30°C

InChI

1S/C15H16N3S.ClH/c1-9-6-13-15(8-11(9)16)19-14-7-10(18(2)3)4-5-12(14)17-13;/h4-8H,16H2,1-3H3;1H/q+1;/p-1

InChI key

HNONEKILPDHFOL-UHFFFAOYSA-M

Packaging

50 g in Glass bottle

Analysis Note

Absorbance at maximum: 0.41AU min
Absorbance maximum wavelength: 620-638nm
Absorbance ratio (P-15/P+15): 1.00-1.23
Assay (spectrophotometric): 50% min
Color: Dark green - black
Form: Powder

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Quality

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