D-Valine good quality and low price CAS NO.640-68-6

Min.Order Quantity:: 1 Kilogram

Purity:: 99%min

Port:: main ports in China

Payment Terms:: L/C,D/A,D/P,T/T,Other

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D-Valine
640-68-6
cas 640-68-6

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ProName: D-Valine good quality and low price
CasNo: 640-68-6
Molecular Formula: C5H11NO2
Appearance: White crystal or crystalline powder
Application: D-Valine is one important organic chir...
DeliveryTime: within 7 days after confirm payment
PackAge: 25kg/drum
Port: main ports in China
ProductionCapacity: Metric Ton/Day
Purity: 99%min
Storage: Storage: All products should be stored...
Transportation: by sea or by air
LimitNum: 1 Kilogram

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specifications

d-valine
1.good quality based on reasonable price
2.efficient logistics and timely delivery
3.large annual capacity

d-valine

molecular formula: c5h11no2 molecular structure:

molecular weight: 117.15

cas no.:640-68-6

[description] white crystal or crystalline powder, soluble in water,dilute acid and dilute base,insoluble in ethanol and ether.

[specification]

item	limit
assay	98.5%~101.0%
specific rotation [α]d20	-27.6°~ -29.0°
transmittance	≥98.0%
ph	5.5 ~ 6.5
loss on drying	≤0.20%
residue in ignition	≤0.10%
chloride [cl-]	≤0.02%
heavy metals [pb]	≤10ppm
iron[fe]	≤10ppm
arsenic[as2o3]	≤1ppm
sulfate[so42-]	≤0.02%
ammonium[nh4+]	≤0.02%

[function] d-valine is one important organic chiral source and is mainly applied in chiral medicine, chiral additive, helping the medicinal preparation and so on. it uses as chrial source of chiral synthesis in drugs manufacuture. as a organic acid with optics activeness, it can not be substated in asymmetrical synthesis of some chircal compound. now it mainly uses as valine protecting agent that applies in processing new broad spectrum antibiotic, d-valinol and multi-peptides.

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