Haolv BioTech (SustGreen Tech, US-based.) is a premier provider of stable isotopes labeled  compounds and NMR reagents for research. We carry a broad product line in research  areas such as NMR solvents, Mass spec applications, stable isotope-labeled internal  standards, stable isotopes labeled building blocks, and custom synthesis for isotope-labeled compounds. 

       Haolv BioTech also provides custom services including GC-MS, LC-MS,  NMR analysis, on-site isotope labeling service, and CRO supports to the pharmaceutical,  biotechnology, and medical device industries.