METHYLENE BLUE - PUR 50g BIOLABORATORIUM

Methylene Blue - pure

Technical information on chemical reagents:

• Chemical formula: C₁₆H₁₈ClN₃S
• CAS number: 61-73-4
• EC number: 200-515-2
• Synonyms: methylthioninium chloride, methylthionine
• Species: pure
• Purity: min. 82.0 % of the main dye

Examples of professional applications in various industries:

• Microscopy: staining of biological and histological preparations.
• Analytical chemistry: used as a pH indicator in laboratory analyses.
• Research laboratories: Component of analytical and chemical reagents.

Hazard warnings on the product label:

H302: Harmful if swallowed.
H319: Irritant to eyes.
H335: May cause respiratory irritation.
H410: Very toxic to aquatic life with long-lasting effects.

Safety instructions on the product label:

P261: Avoid breathing dust/fume/gas/mist/vapors/aerosol.
P264: Wash hands thoroughly after handling.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P501: Dispose of contents/container to an approved waste disposal facility.

Recommended storage conditions:

1. Store in a cool, dry place, away from heat sources.
2. Protect from moisture to prevent caking and loss of properties.
3. Store in tightly closed containers, protected from light.

Physical and chemical parameters:

• Appearance: reddish-brown or green powder.
• Maximum absorption (H₂O): 663 - 667 nm
• Absorption (1%, 1 cm, water): min. 2200
• Maximum absorption coefficient P±15 nm: 1.21 - 1.70
• Loss on drying (110°C): 8.0 - 16.0%
• Water-insoluble substances: max. 2.0%.

Quality specification:

• Main dye content: ≥ 82.0%
• Absorbance (1%, 1 cm, water): ≥ 2200
• Water-insoluble substances: ≤ 2.0%
• Loss on drying (110°C): 8.0 - 16.0%

Marks on the packaging: