Active sulphur molecules.

Active sulphur molecules such as cysteine polysulphide, to which excess sulphur atoms are added to the thiol (SH) group of cysteine, are abundant in living organisms and are known to have ponent antioxidant and redox signalling regulatory properties. We have established an efficient synthesis method for oxidised active sulphur molecules (polysulphides). We have isolated each high purity product by HPLC purification of a mixture of thiols (n=1) and sulphur insertions (n=3-8). We have experience in the synthesis of cysteine and glutathione, and the same synthetic method can be applied to other common thiol-containing compounds as starting materials.
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SCHEM No.	Structure	Compound Name	Price (JPY)	Purity	Stock(mg)
07609		Glutathione tridecasulfide	119,600/0.1mg	<80%	0.7
07608		Glutathione dodecasulfide	119,600/0.1mg	<80%	0.6
07607		Glutathione undecasulfide	122,300/0.1mg	<80%	0.7
07606		Glutathione decasulfide	122,300/0.1mg	<80%	0.9
07603		Glutathione nonasulfide	122,300/0.1mg	>80%	1.5
07524		Glutathione octasulfide	88,300/0.1mg	>90%	1.7
06866		Glutathione heptasulfide	88,300/0.1mg	>90%	3.2
06865		Glutathione hexasulfide	88,300/0.1mg	>90%	8.6
06862		Glutathione pentasulfide	72,200/0.1mg	>90%	19.0
06863		L-Cysteine tetrasulfide	64,600/0.1mg	>95%	0
06861		Glutathione tetrasulfide	67,300/0.5mg	>90%	60.1
06860		Glutathione trisulfide	67,300/10mg	>90%	89.5

Compounds not listed may be available at similar prices. If the structure has only different substituents, the synthesis method has already been established, so it takes 1-2 weeks and can be synthesised in the same level price range.

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