| Customization: | Available |
|---|---|
| CAS No.: | 61-73-4 |
| Type: | Industrial Grade |
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Methylene blue, with the chemical formula C16H18N3ClS, is a phenothiazine salt that is a dark green bronze luster crystal or powder, soluble in water and ethanol, and insoluble in ethers. Methylene blue is relatively stable in air, and its aqueous solution is alkaline and toxic. Methylene blue is widely used in chemical indicators, dyes, biological dyes, and pharmaceuticals.
English name: methylene blue
Chemical formula C16H18N3ClS
Molecular weight 319.85
CAS login number 61-73-4
EINECS login number 200-515-2
Melting point 190 ºC
Density 1.0 g/cm ³
Appearance: Dark green bronze glossy crystal or powder
Flash point 45 ºC
Applied chemical indicators; Dyes; Biological staining agents; medicine
|
Testing terms |
Standards |
Results |
|
Assay |
95.0%~102.0% |
99.9% |
|
PH |
3.5~5.5 |
4.6 |
|
Appearance of solution |
0.5mol/L HCL≤2# 2mol/L NH4 OH≤2# |
1# 1# |
|
Water |
11.5%~14.5% |
13.2% |
|
Related substances |
Impurity (max.)≤1.0% |
0.13% |
|
Specific optical rotation |
+290''~+315'' |
+305° |
|
Sulfated ash |
≤1.0% |
0.1% |
|
N-N-Dimethylannline |
≤20ppm |
Never used in the production |
|
Methylen chloride |
≤600ppm |
296ppm |
|
|
≤320ppm |
155ppm |
|
|
≤3000ppm |
95ppm |
|
Conclusion:complies with EP 6th Standard. |
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