Molekula
Methylene blue zinc free
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Certificate of Analysis with every batch
Methylene blue zinc free is a synthetic phenothiazine dye and redox indicator widely used in microbiology for staining bacteria and fungi, as a dye in biological research, and in medical applications for methemoglobinemia treatment. It appears as a dark green to blue-black crystalline powder with a deep blue solution in water. This chemical has a CAS number of 61-73-4, molecular formula C16H18ClN3S, and a molecular weight of 319.85. It should be stored at ambient conditions and carries a signal word of Warning for safety. Molekula supplies Methylene blue zinc free from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Methylene blue zinc free is a synthetic phenothiazine dye and redox indicator widely used in microbiology for staining bacteria and fungi, as a dye in biological research, and in medical applications for methemoglobinemia treatment. It appears as a dark green to blue-black crystalline powder with a deep blue solution in water. This chemical has a CAS number of 61-73-4, molecular formula C16H18ClN3S, and a molecular weight of 319.85. It should be stored at ambient conditions and carries a signal word of Warning for safety. Molekula supplies Methylene blue zinc free from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | Dark blue crystalline powder with a copper coloured sheen or green crystals with a bronze sheen |
| Melting Point | 188 - 192 ℃ |
| Loss on Drying | at 105℃: 8.0 -22.0% |
| Solubility | Soluble in water |
| Specific absorption | at λmax 0.003g/l in ethanol: 2250 - 2750 |
| Dye Content | ≥82.0% |
| Absorption maxima | in 50% ethanol: 660 - 665nm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90037016 |
| CAS Number | 61-73-4 |
| Molecular Formula | C16H18ClN3S |
| Molecular Weight | 319.85 |
| SMILES | [Cl-].N=1C2=CC=C(C=C2[S+]=C3C=C(C=CC13)N(C)C)N(C)C |
| REACH Code | Y110 |
| HTS Code | 3204.13.51 |
| Tariff Code | 3212900000 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H361 Suspected of damaging fertility or the unborn child
- H373 May cause damage to organs through prolonged or repeated exposure
- H413 May cause long lasting harmful effects to aquatic life
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Hungarian, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is methylene blue zinc-free primarily used for?
Methylene blue zinc-free is commonly used as a redox indicator, dye for biological stains, and in medical applications such as treating methemoglobinemia.
What is the chemical formula and molecular weight?
The chemical formula is **C16H18ClN3S**, and the molecular weight is **319.85 g/mol**.
How should methylene blue zinc-free be stored?
Store at **ambient temperature** in a tightly sealed container, away from direct sunlight and moisture.
What grades of methylene blue zinc-free does Molekula supply?
Molekula supplies **analytical, reagent, and technical grades** of methylene blue zinc-free, depending on purity requirements.
Can Molekula supply methylene blue zinc-free in bulk quantities?
Yes, we offer bulk packaging options for methylene blue zinc-free, with quantities tailored to your specific needs.
What documentation comes with an order of methylene blue zinc-free?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.