Methylblue , BiologicalStain , 28983-56-4

Synonym(s):
Acid blue 93;Cotton blue;Water blue;Poirriers blue;Methyl blue for microscopy and microbiology

CAS NO.：28983-56-4

Empirical Formula: C37H29N3O9S3.2Na

Molecular Weight: 799.8

MDL number: MFCD00058509

EINECS: 249-352-9

PRODUCT Properties

• Melting point: >250℃
• Boiling point: 1380℃[at 101 325 Pa]
• Density: 1.49[at 20℃]
• bulk density: 670kg/m3
• vapor pressure: 0Pa at 25℃
• storage temp.: Store at RT.
• solubility: 70g/l
• form: powder
• Colour Index: 42780
• color: Red to Brown
• PH Range: 11.0(BLUE)-13.0(RED)
• PH: 5.0 (10g/l, H2O, 20℃)
• Odor: Odorless
• Water Solubility: Soluble in water
• λmax: 600 nm
• Merck: 13,6055
• Stability: Stable. Incompatible with strong oxidizing agents.
• Biological Applications: Assay for nucleic acids,protein determination,identification of Candida albicans; method for counting leukocytes,controlled drug release; radiotherapy; treating apolipoprotein E-related diseases; oral care products
• LogP: -3.75 at 25℃
• CAS DataBase Reference: 28983-56-4(CAS DataBase Reference)
• EPA Substance Registry System: C.I. Acid Blue 93 (28983-56-4)

Description and Uses

Methyl Blue is used as a stain for tissue in biological applications. It is also used to study aromatic framework ability to remove charged dyes from water. Methyl Blue can be used as a indicator with a range of (pH 9.4-14.0).

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302-H315-H319-H335
• Precautionary statements: P280a-P304+P340-P405-P501a-P261-P305+P351+P338
• Hazard Codes: Xn
• Risk Statements: 22-36/37/38
• Safety Statements: 22-24/25-36/37-26
• WGK Germany: 3
• RTECS: DB5044700
• TSCA: Yes
• HS Code: 29350090
• Toxicity: LD50 orally in Rabbit: > 5000 mg/kg