氯化四唑氮蓝

C₄₀H₃₀N₁₀O₆ · 2Cl

817.64

4115923

MFCD00012159

329770281

NA.54

Nitrotetrazolium blue chloride (NBT) is used in staining, visualizing and evaluating the damage in brain sections or heart tissues. The principle of the technique is that the redox enzymes like nicotinamide adenine dinucleotide NAD(H) and cofactors present in the cell convert colorless tetrazolium salt to blue formazan. The dead cells remain unstained. It is used in the dual-staining along with methyl green for the hyperspectral microscopic imaging analysis of colon tissues for the diagnosis of colon diseases. NBT is also used for diagnosing microbial infections and phagocytic defects. In conventional chromogenic methods, NBT/ 5-bromo-4-chloro-3-indolyl phosphate (BCIP) is used as a substrate for alkaline phosphatase enzyme reaction, in which NBT is reduced to insoluble purple diformazan.

solubility:
250 mg in 5 mL methanol: yellow to very dark yellow and light brown-yellow to very dark brown-yellow

100

90.0-110.0% (calc. on dry substance, T)

≤10% solvent content
≤10% water

in methanol

λ: 252-262 nm A_max

2-8℃

[Cl-].[Cl-].COc1cc(ccc1-[n+]2nc(nn2-c3ccc(cc3)[N+]([O-])=O)-c4ccccc4)-c5ccc(c(OC)c5)-[n+]6nc(nn6-c7ccc(cc7)[N+]([O-])=O)-c8ccccc8

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

FSVCQIDHPKZJSO-UHFFFAOYSA-L

GHS07

Warning

H302 - H315 - H319 - H335

P261 - P264 - P270 - P301 + P312 - P302 + P352 - P305 + P351 + P338

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

Respiratory system

11 - Combustible Solids

WGK 3