Hi, availability highly depends on where you are based and the time it takes to get products to you. import regulations (and export depending on where it comes from) can also be really complex.

For stable W isotopes you could try ask Isoflex, or for w188/Re188 generators Oak Ridge National Lab. it requires a reactor (no accelerator production so far I think) so very few facilities can make it. Only 3 I believe have the capability, there is a good review here:

https://www.frontiersin.org/articles/10.3389/fmed.2019.00132/full#B33

99Mo, do you mean generators? They are a lot more readily available.

Hi Jim,

Thank you for your answer. Right now, I'm in Germany. I would like to know the places that able to provide those radioisotopes. I eager to will order to purchase soon.

Best regards,

Mohamed

Hi Mohamed

I’m not entirely sure what you’re looking for, what do you mean by 99Mo isotopes (It decays to 99mTc via transient equilibrium). if you’re after generators, there are companies in Germany that can offer these at clinical grade. I’m not based in Germany but here is one example. You could speak to your local nuclear medicine department who could help you better

http://www.rotop-pharmaka.de/en/our-products/99mo99mtc-generator/

Tungsten generators are not available commercially yet (as far as I’m aware). I suggest you contact Oak Ridge in the USA. You can request a quote here: https://www.isotopes.gov/node/471