Methylthioninium Chloride BP


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Macsen Laboratories, world’s leading manufacturer and supplier of Methylthioninium Chloride BP.
WHO GMP, WC & USDMF is now available for Methylthioninium Chloride.
Name of Product Methylthioninium Chloride
Pharmacopoeial Name Methylthioninium Chloride BP
Synonyms Methylene Blue ; Basic Blue 9 ; C.I 52015 ; Methylene Blue Trihydrate
CAS No 122965-43-9


SR. No Criteria Limit/Specification
1 Appearance Dark Blue Crystalline Powder with a Copper- colored Sheen, or Green Crystals with a bronze-colored sheen.
2 Solubility Must Pass Test
3 Identification Must Pass A to D Tests Of B.P
4 Loss On Drying (At 75˚C) Limit: IN BETWEEN 8.0%-22.0%
5 Sulphated Ash Test NMT 0.25%
6 Related Substances Impurity A (Limit: Max.5.0%)
Any other Impurity
(Limit: Max.0.5%)
Sum Of impurity Other then A (Limit: Max. 1.0%)
Disregard Limit: Limit (0.1%)
7 Heavy Metals Must Comply as per BP
8 Assay (With Reference To Subs.
Dried At 105˚C & As % Of (C 16H 18N 3ClS).H 2O
Buy the best quality Methylthioninium Chloride BP Use for topical antiseptic, urinary tract Antiseptic, antidote injection for methemoglobinemia & cyanide poisoning from Macsen Laboratories.
Macsen Labs group’s Methylene Blue Synthesis Process granted a patent from the Indian patent office

The Indian Patent Office granted a patent to Mr Achal Agrawal, CEO of Macsen Labs, Udaipur. The title of the patent is Novel Improved Method for Synthesis of Diaminophenothiazine Compounds and it concerns a novel process for synthesising the compound Methylthioninium Chloride or Methylene Blue. Macsen Labs has now achieved a unique position by this patent and from now nobody will be able to copy this process. Read more

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