Isotopically Labeled and Unlabeled Reference Standards

 

Custom Synthesis Services

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Our core business is in the small-scale (milligram to gram) synthesis of pharmaceutical active organic compounds for research purposes and use as Certified Analytical Reference Standards. If you can draw it, we can probably synthesize it (at a price of course, that covers our R&D efforts!).

Stable Isotope Labeled (SIL) and Unlabeled Reference Standards

We specialize in small-scale synthesis of:

- APIs
- Metabolites
- Impurities
- Analogues
- Intermediates



With decades of combined experience, we are experts in the synthesis of stable labeled APIs and metabolites. Our extensive experience allows us to place deuteriums in the most stable positions to limit exchange, which ensures the quality of your assay. In cases where deuterium labeling is not desirable, we happily rely on 13C or 15N.

We are a registered DEA lab for Schedules I to V controlled compounds.

 

We have a large number of Anaytical Reference Standards available in stock for delivery. Please view our catalog of high-purity compounds and sealed solutions or request a quote for those listed and for custom-synthesis of those that are not listed in our catalog.

 

Full-time Equivalent (FTE) service is also available for R&D efforts, custom-synthesis of comounds with limited or no literature precedent requiring synthesis method development, or for primarily research oriented projects.

 

Quality Matters

Are you buying poorly characterized and unsupported reference standards? You don't need to settle for TLC or single wavelength purity determination.

With our full chemical certification, you will never need to doubt the authenticity or purity of Chemtos reference standards. Every compound provided by Chemtos comes fully certified with UV Diode Array HPLC purity analysis, proton NMR analysis, LC/MS and all of the supporting data. All analytical work is done under GLP conditions. Concentrations of our single use reference standard solutions in fame sealed ampules are verified by Quantitative proton NMR in order to independently confirm the stated potency/concentration value. See a sample Certificate of Analysis.

Learn more about the Chemtos Difference

N-Morpholinyl Etonitazene Citrate

High purity N-Morpholinyl Etonitazene Citrate includes a comprehensive Certificate of Analysis and all supporting analytical data

Etomidate acid HCl

High purity Omidic acid (Etomidate acid, (R)-1-(1-phenylethyl)-1H-imidazole-5-carboxylic acid) Hydrochloride includes a comprehensive Certificate of Analysis and all supporting analytical data

n-butomidate HCl 1mg/ml

High purity n-butomidate Hydrochloride includes a comprehensive Certificate of Analysis and all supporting analytical data

3-Methylflephedrone HCl

High purity 3-Methylflephedrone hydrochloride includes a comprehensive Certificate of Analysis and all supporting analytical data

4F-3Me-PVP HCl

High purity 4-Fluoro-3-Methyl-alpha-PVP (4-Fluoro-3-methyl--pyrrolidinovalerophenone, 4F-3Me-PVP) hydrochloride includes a comprehensive Certificate of Analysis and all supporting analytical data

α -PVT HCl

High purity α-Pyrrolidinopentiothiophenone (α -PVT) hydrochloride includes a comprehensive Certificate of Analysis and all supporting analytical data

Diethylpropion HCl 1mg/ml

High purity Diethylpropion HCl (Amfepramone HCl) solution includes a comprehensive Certificate of Analysis and all supporting analytical data

PEPAP HCl 1mg/ml

High purity PEPAP HCl (MCV 4527, 1-(2-Phenylethyl)-4-phenyl-4-acetoxypiperidine, synthetic heroin, DEA C-I #9663) solution includes a comprehensive Certificate of Analysis and all supporting analytical data

2C-B-BZP 2HCl

High purity 2C-B-BZP 2HCl (2C-B-Benzylpiperazine 2HCl, 1-(4-BROMO-2,5-DIMETHOXYBENZYL) PIPERAZINE 2HCl, 1-[(4-bromo-2,5-dimethoxyphenyl)methyl]-piperazine dihydrochloride) includes a comprehensive Certificate of Analysis and all supporting analytical data

4-Hydroxy Duloxetine Acetate salt

High purity 4-Hydroxy Duloxetine Acetate salt includes a comprehensive Certificate of Analysis and all supporting analytical data

1-Phenylcyclohexylamine HCl (PCA, PCP precursor)

High purity 1-Phenylcyclohexylamine Hydrochloride (PCA, PCP precursor) includes a comprehensive Certificate of Analysis and all supporting analytical data

4-MeO-Buphedrone (4-MeO-MABP) HCl

High purity 4-MeO-buphedrone (4-Methoxy buphedrone, 1-(4-methoxyphenyl)-2-(methylamino)butan-1-one) HCl (variant of Ethedrone and dimethedrone) includes a comprehensive Certificate of Analysis and all supporting analytical data