Solvent Blue 38, also known as Fast Blue MBSN, is a dye with various applications including useful as a myelin-sheath stain. Commonly utilized in microscopy to detect demyelination in the central nervous system.

Synonyms:
Acid Blue 87; Aizen Primula Turquoise Blue GL; Aizen Primula Turquoise Blue GLH; Amafast Turquoise 8GGL; Amanil Fast Turquoise; Amanil Fast Turquoise LB; Arlazol Fast Turquoise Blue 6GN; Atlantic Fast Turquoise LGA; Basacid Blue 752; Belamine Fast Turquoise LGL; C.I. 74180; C.I. Acid Blue 87; C.I. Solvent Blue 38; Calcodur Turquoise GL; Chlorantine Fast Turquoise Blue GLL; Chlorantine Fast Turquoise VLL;
Chrome Leather Turquoise Blue GLL; Cibafix Direct Blue 86; Cuprofix Blue Green B; Cuprofix Blue Green FB; Cuprofix Turquoise Blue FBL; Daivougen Blue BF; Derma Fast Turquoise W 2GL; Diaphtamine Light Turquoise G; Diazol Light Turquoise JL;
Direct Blue 86; Direct Emerald Blue GL; Direct Fast Blue L 7V; Direct Fast Turquoise;
Direct Fast Turquoise Blue GL; Direct Fast Turquoise GL; Direct

CAS No:
1328-51-4

Molecular Formula:
C₃₂H₁₄CuN₈Na₂O₆S₂

Molecular Weight:
766.26

Purity:
90-100% Dye Content

Appearance:
Dark blue to black solid

Loss on Drying:
≤ 5.0%

Lambda-max (UV-Vis):
665nm ± 10nm (0.1% methanol)

Melting Point:
~235°C dec.

Solubility:
DMSO (Slightly), Methanol (Slightly)

Storage and Stability:
Powder is stable for 6 months after receipt at RT.