Methylene blue solution for microbiology, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY

Synonyms: Basic Blue 9Swiss BlueMethylthioninium chlorideMethylene blue chloride3,7-Bis(dimethylamino)phenothiazin-5-ium chloride

50484-100ML-FEA 23.7 GBP
50484-100ML-F
Methylene blue solution for microbiology, Sigma-Aldrich®
Methylene blue

Ehrlich’s reagent III, Loeffler’s Methylene Blue. Methylene Blue was earlier recognized as a good nuclear stain, the staining solutions are always either aged or alkalized, if not both. More importantly it is an excellent stain for ribonucleic acid, which is the important stainable constituent of bacterial bodies, of lymphocyte and hemoportoal cytoplasm, and of nerve cell tigroid granules. It can also be employed in capsule stain. The capsule stain begins as a negative stain leaving the organisms colorless. The capsule are clearly seen as halo surrounding the bacterial cell. Another staining procedure is performed with nigrosin (Cat. No. 43925).

Formula: C₁₆H₁₈ClN₃S
MW: 319,86 g/mol
MDL Number: MFCD00150008
CAS Number: 61-73-4

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