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1-Methylhistamine dihydrochloride is a major metabolite of histamine by histamine N-methyltransferase in the pathway of histidine metabolism. It has been used as a biomarker of histaminergic system activity in the brains of Alzheimer's disease patients as well as those with hypersomnia and other neurological conditions.

| Pack Size | Price | Availability | Quantity | 
|---|---|---|---|
| 5 mg | $33 | In Stock | |
| 10 mg | $51 | In Stock | |
| 25 mg | $97 | In Stock | |
| 50 mg | $178 | In Stock | |
| 100 mg | $268 | In Stock | |
| 1 mL x 10 mM (in DMSO) | $34 | In Stock | 
| Description | 1-Methylhistamine dihydrochloride is a major metabolite of histamine by histamine N-methyltransferase in the pathway of histidine metabolism. It has been used as a biomarker of histaminergic system activity in the brains of Alzheimer's disease patients as well as those with hypersomnia and other neurological conditions.  | 
| Molecular Weight | 198.09 | 
| Formula | C6H13Cl2N3 | 
| Cas No. | 6481-48-7 | 
| Smiles | Cl.Cl.CN1C=NC(CCN)=C1 | 
| Relative Density. | no data available | 
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 12 mg/mL (60.58 mM), Sonication is recommended.   | ||||||||||||||||||||||||||||||
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DMSO 
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