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Methylene Blue Trihydrate USP39 C.I. 52015

Price: £4.95
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Stock Availability
On Shelf - Approx. UK delivery date: Wednesday the 01st October 2025*
In bulk stock - ships within 10 - 12 Working Days (Excluding weekends and public holidays)
4 to 6 weeks approx. (Not guaranteed)
UK Shipping

Unfortunately, we are not currently accepting orders for Northern Ireland.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed

Used for staining DNA and RNA

Methylene Blue is a dark greenish crystalline powder and is often used in Wright’s Stain and Jenner’s Stain. It can also be used for staining DNA and RNA

  • Conforms to USP Specification
  • Assay (Dry Basis): 98.0-103.0%
  • MF: C16H18CIN3S*3H2O
  • MW: 373.90
  • Loss on drying: 8.0-18%
  • Residue on ignition: <1.2%wt
  • Arsenic (As): <8ppm
  • Copper (Cu): <200ppm
  • Zinc (Zn): No Turbidity within 5 min
  • Residual Solvents:
  • Methylene Chloride: <126 ug/g
  • Chloroform: <12 ug/g
  • Trichloroethylene: <15 ug/g
  • 1,4-Dioxane: <49 ug/g

Hazard Phrases: Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Prec Phrases: Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Avoid breathing dust/fume/gas/mist/vapours/spray. Store in a well-ventilated place. Keep container tightly closed.

Harmful CLP Image

Cas No: 7220-79-3
Einecs No: 615-731-6

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Source Chemicals Ltd