Methylene Blue
Methylthioninium chloride supplied by Loti Labs as capsules for laboratory research. Specifications, the current certificate of analysis and the full batch history, all on one page.
Methylene Blue Capsules (10mg/capsule, 30 capsules). For laboratory, analytical and research use only.Compound specifications
| Compound | Methylthioninium chloride |
| Class | Methylthioninium chloride |
| Molecular formula | C16H18ClN3S |
| Molecular weight | 319.9 g/mol |
| CAS number | 61-73-4 |
| Form | Capsules, 30 count |
| Formats | 10 mg per capsule, 30 capsules |
Latest certificates of analysis
10 mg per capsule, 30 capsules
Batch history
| Test date | Format | Batch | Purity | Identity | Laboratory | |
|---|---|---|---|---|---|---|
| Apr 17, 2026 | 10 mg per capsule, 30 capsules | LOT-METH-00001 | 98.17% | Conforms | SR Bio Labs | Certificate |
How every batch is tested
Every Loti Labs batch is tested by an independent, U.S.-based third-party laboratory. Purity is measured by HPLC and identity is confirmed by mass spectrometry. Where a certificate includes an endotoxin screen, the result is shown above. Each certificate is archived permanently under its batch number, so earlier batches stay on record after a new one arrives. Search the complete COA archive.
Questions researchers ask
What purity is the current Methylene Blue batch?
10 mg per capsule, 30 capsules: batch LOT-METH-00001 tested at 98.17% purity by HPLC on Apr 17, 2026, identity confirmed by mass spectrometry.
What is the molecular formula and weight of Methylene Blue?
Methylene Blue has molecular formula C16H18ClN3S and a molecular weight of 319.9 g/mol, CAS 61-73-4.
How do I find the certificate for my bottle?
Match the lot number printed on the bottle label to the batch column in the history table, or search it in the Loti Labs COA archive. Every certificate is kept permanently under its batch number.
What is Methylene Blue from Loti Labs intended for?
Loti Labs supplies Methylene Blue strictly for laboratory, analytical and research use. It is not for human or veterinary use, and it is not a drug, food or cosmetic.
Available to registered researchers
Ordering opens after you sign in or create a free research account.
RESEARCH USE ONLY. This page is provided for laboratory, analytical and research reference. Products are not drugs, foods or cosmetics and are not for human or veterinary use.