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Specialty Chemicals

Methylene Blue Trihydrate

Methylene Blue Trihydrate supplied by ELIS Biotech, a China-based ingredient supply, sample order, and sourcing support partner. This analytical reagent grade dye is commonly used in laboratory staining, chemical analysis, redox indicator applications, research testing, and industrial quality control. ELIS supports specification checks, document coordination, sample/trial order review, and bulk supply support.

CAS No.
7220-79-3
Grade
Analytical Reagent
Molecular Formula
C16H18ClN3S·3H2O

Product Details

Methylene Blue Trihydrate is a synthetic thiazine dye and laboratory reagent commonly used in staining, microscopy, chemical analysis, redox indicator applications, R&D testing, and industrial quality control. It is usually supplied as a dark green to dark blue crystalline powder and is soluble in water.
This product is supplied as Analytical Reagent Grade / AR Grade, making it more suitable for laboratory, reagent distribution, research, and quality control procurement rather than food, cosmetic, supplement, or direct consumer applications.
For procurement and technical review, buyers usually need to confirm not only the product name and price, but also the exact hydration form, CAS number, grade, assay, impurity limits, solubility, packaging format, documentation package, MOQ, and shipment feasibility. ELIS Biotech helps small and medium-sized B2B buyers check suitable China supply options, coordinate documents, confirm sample or trial order feasibility, and support bulk order export according to destination country and project requirements.



Quick Product Information

Product Name Methylene Blue Trihydrate
Other Names Methylthioninium Chloride Trihydrate, Basic Blue 9 Trihydrate, Methylene Blue AR, Methylene Blue Analytical Reagent, C.I. Basic Blue 9
CAS No. 7220-79-3
Molecular Formula C16H18ClN3S·3H2O
Molecular Weight 373.90
Appearance Dark green to dark blue crystalline powder, depending on specification and production process
Grade Analytical Reagent Grade / AR Grade
Common Specifications Assay, drying loss, insoluble matter, residue on ignition, and impurity limits can be checked according to supplier-side specification.
Solubility / Formulation Note Soluble in water. Solution concentration, color intensity, and suitability should be confirmed according to the intended laboratory method or application system.
Packaging Common packaging may include 100g/bottle, 500g/bottle, 1kg/bottle, 5kg/bag, or customized laboratory and bulk packaging formats. Packaging can be checked according to order quantity, product specification, and shipping requirements.
MOQ According to specification, stock status, packaging format, and shipment feasibility
Documents COA with specifications, MSDS, and other standard export documents where available



Typical Applications

  • Laboratory reagent use
  • Biological staining
  • Microscopy staining
  • Chemical analysis
  • Redox indicator applications
  • R&D testing
  • Industrial quality control
  • Reagent distribution
  • Sample or trial order checks



Key Sourcing Points to Confirm

When sourcing Methylene Blue Trihydrate, buyers may need to confirm CAS number, hydration form, analytical reagent grade standard, assay, appearance, solubility, drying loss, insoluble matter, residue on ignition, impurity limits, packaging format, storage conditions, documentation, and intended application.
For laboratory reagent suppliers, research teams, QC departments, and specialty chemical distributors, it is also important to confirm whether the product is intended for staining, indicator use, analytical testing, industrial QC, or resale packaging. These details help determine suitable specification, packaging size, document requirements, and shipment feasibility.



Technical Notes

Methylene Blue may appear under different CAS numbers depending on whether buyers refer to the anhydrous form or trihydrate form. For Methylene Blue Trihydrate, the commonly used CAS number is 7220-79-3. Buyers should confirm the hydration form before quotation to avoid mismatch between inquiry, COA, label, and import documents.
This product should be reviewed according to its intended use. If the buyer requires pharmaceutical, medical, diagnostic, food, cosmetic, or regulated end-use applications, additional grade confirmation, regulatory review, and documentation checks are required before quotation or shipment.



Sourcing & Documentation Support

ELIS Biotech provides China-based sourcing support for Methylene Blue Trihydrate, including specification confirmation, grade checking, supplier-side availability checking, MOQ review, sample or trial order feasibility checks, packaging coordination, standard document coordination, bulk order support, and export coordination.
Available documentation may include COA, Specification Sheet, MSDS, TDS, ISO-related certificates, or other product-related documents where applicable. Final availability depends on the product, specification, supplier source, order quantity, destination country, and buyer’s documentation requirements.



Inquiry Information

To request a quotation for Methylene Blue Trihydrate, please provide the product name, CAS number, target grade, estimated quantity, application, destination country, document requirements, and preferred trade terms if available.
If your project requires AR grade, specific assay limits, small packaging, bulk packaging, private labeling, or special documentation, please include these details in your inquiry. ELIS Biotech will help check specification feasibility, sample or trial order options, documentation, MOQ, bulk supply conditions, and export coordination possibilities.