L-Cystine (Ph. Eur.) low endotoxin pure, pharma grade

(R,R)-(-)-Cystine, 3,3#-Dithiobis(2-Aminopropanoic) Acid, b , b '-Dithiodialanine

Assay (calc. a.d.s.): 98.5 - 101.0 %

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Box prices only valid with purchase of full box.

	code	packaging size	price per unit	box price per unit
	Code & packaging		Price per piece
	code Z43645.0914	packaging size 5 kg	price per unit single Request a quote	box price per unit

Product Code:: Z43645
Product Name:: L-Cystine (Ph. Eur.) low endotoxin pure, pharma grade
Quality Name:: low endotoxin pure, pharma grade
Specifications:: Assay (calc. a.d.s.): 98.5 - 101.0 %
Identity IR: passes test
Specific rotation α 20/D of 2% (in HCl 1 mol/l): -218° - (-224°)

Maximum limit of impurities
Appearance of solution: passes test
Loss on drying: 0,5 %
Residue on ignition: 0.10 %
Chloride (Cl): 0,02 %
Ammonium (NH4): 0,02 %
Sulfate (SO4): 0,03 %
Residual solvents (Ph.Eur.): passes test
Microbial Limits
Bacterial endotoxins: 12 IU/g
Ninhydrin positive substances (HPLC):
Individual impurity: 0,2 %
Total impurities: 0,5 %
Solubility in alkaly: 2 NTU
Fe: 0.001 %
DOES NOT COME FROM ANIMAL ORIGIN.

Storage:: Room Temperature.
Master Name:: L-Cystine
Synonyms Long Text:: (R,R)-(-)-Cystine, 3,3#-Dithiobis(2-Aminopropanoic) Acid, b , b '-Dithiodialanine
EINECS:: 200-296-3
CS:: 29309013