Dopamine

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Dominiquest
Dominiquest's picture
Dopamine

I need to know where I can find or purchase a very small quantity of pure Dopamine. I need it for the purification step in extraction from a crude sample. If anyone has any information on where and how I can find this compound, please let me know at the earliest since the testing is to be conducted in December.

Thank you.
Dominique.

Fraser Moss
Fraser Moss's picture
Sigma-Aldrich sell 98%

Sigma-Aldrich sell 98% isotope D Dopamine-1,1,2,2-d4 hydrochloride

http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/655651?langId=-1&storeId=11001&refURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fsearch%2FProductDetail%2FALDRICH%2F655651

I could not get pricing or availability for you in India

they also sell Dopamine hydrochloride - catalogue code H8502

http://www.sigmaaldrich.com/catalog/search/ProductDetail/SIGMA/H8502

5g costs 1686.00 INR

Dominiquest
Dominiquest's picture
frasermoss wrote:Sigma

frasermoss wrote:

Sigma-Aldrich sell 98% isotope D Dopamine-1,1,2,2-d4 hydrochloride

http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/655651?langId=-1&storeId=11001&refURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fsearch%2FProductDetail%2FALDRICH%2F655651

I could not get pricing or availability for you in India

they also sell Dopamine hydrochloride - catalogue code H8502

http://www.sigmaaldrich.com/catalog/search/ProductDetail/SIGMA/H8502

5g costs 1686.00 INR

This Dopamine Hydrochloride that you told me about, is it L-Dopamine? Because that's the one that works in human beings. Its within my project budget and so I think I'll purchase it. Is the price along with the shipment charges or without?.... I feel it doesn't really matter if it is L or D Dopamine because the molecular weight will be the same and that is what i need for the next step and it will only be used as a standard and a marker.

Thank you for the great help!
Regards,
Dominique.

Fraser Moss
Fraser Moss's picture
The proportions of the L- and

The proportions of the L- and D-Dopamine for the Dopamine Hydrochloride are not stated on the product page web page.

I would assume a chiral mixture when you make up the solution.

nomopolitics
nomopolitics's picture
Sigma-Aldrich specifies very

Sigma-Aldrich specifies very clearly that they are supplying D Dopamine.   I don't know what the other poster was thinking when he said assume equal amounts.  The are many chemicals where the D and L variants are wildly different in action.   Most commonly referenced is D vs L methamphetamine, one of which is the primary constituent of "Vicks nasal inhalers" and is a mild decongestant.    The other form is the methamphetamine that is a major street drug causing 1000's of deaths and billions in crime every year.    Do NOT assume that the D and L Dopamine are ANYTHING like each other in action.