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1.24823

Sigma-Aldrich

Nitro blue tetrazolium chloride (NBT)

for microscopy

Synonym(s):
Nitro blue tetrazolium chloride (NBT), 3,3′-(3,3′-Dimethoxy-4,4′-biphenylene)bis [2-(4-nitrophenyl)-5-phe nyl-2H-tetrazolium chloride], NBT
CAS Number:
Molecular Weight:
817.64
MDL number:
EC Index Number:
206-067-4

Quality Level

form

solid

mp

189 °C

εmax

800-900 at 256-259 nm in methanol at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

2-8°C

InChI

1S/C40H30N10O6.2ClH/c1-55-37-25-29(13-23-35(37)47-43-39(27-9-5-3-6-10-27)41-45(47)31-15-19-33(20-16-31)49(51)52)30-14-24-36(38(26-30)56-2)48-44-40(28-11-7-4-8-12-28)42-46(48)32-17-21-34(22-18-32)50(53)54;;/h3-26H,1-2H3;2*1H/q+2;;/p-2

InChI key

FSVCQIDHPKZJSO-UHFFFAOYSA-L

General description

Nitro blue tetrazolium chloride (NBT) is a dry dye for the staining of histological tissue sections and histochemical as well as in vivo methods on material of human origin.
The dye is a CE certified IVD product and has a constant dye content and a reliable high quality, which is one of the major precondition for a reproducible diagnostic staining. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Application

Dry dye used in histochemistry

Analysis Note

Identity (UV/VIS-Spectrum)passes testAbsorption maximum λ max (Methanol)256 - 259 nmSpec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; methanol; calc. on dried substance)800 - 900Loss on drying (Vacuum < 7 mbar, P₂O₅, 24 h)≤ 12 %Suitability for microscopypasses test

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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