Trypan Blue C.I.23850

Trypan blue, also known as Direct Blue 14, is a vital stain used to selectively colour dead tissues or cells blue. It is a diazo dye. Live cells or tissues with intact cell membranes are not coloured.

• Used as a biological dye

Molecular Formula: C₃₄H₂₄N₆Na₄O₁₄S₄
Molecular Weight: 960.80 g/mol
Appearance: Dark green to brown or brown-black powder, crystalline powder or granule
Dye Content: ≥ 70%
Absorption Max. (MeOH): 603—607 nm
Absorptivity (A, 1%/1 cm, λ_max in MeOH): ≥ 730
Loss on Drying: ≤ 10.0%

Cas Number: 72-57-1

Einecs Number: 200-786-7

HS Code / Commodity Code: 32129000

Hazard Phrases: H350

Prec Phrases: P201,P280,P308+P313