Specification :

Leuprorelin Acetate
CAS NO 53714-56-0
purity :98% min

1 Appearance White powder Conforms
2 Solubility Souble in water or 1% acetic acid at a concentration ofe1mg/ml to give a clear, colorless solution Conforms
3 Identity Monoisotopic Mass: 1209.43±1.0 1209.8
4 Specific optical rotation -38.0^-42.0° [±]20D(c=1,1%HAc) -40.0°
5 Amino acid Composition Ser: present Glu: 0.85^1.1 Pro: 0.85^1.1 Leu: 0.85^1.1 Tyr: 0.85^1.1 His: 0.85^1.1 Arg: 0.85^1.1 Trp: present 0.88 0.91 1.01 2.06 1.00 0.98 0.95 present
6 Peptide Purity(By HPLC) e98.0% by area integration 99.3%
7 RelatedSubstance(BYHPLC) Total Impurities(%)d2.0% Largest Single Impurity(%)d0.5% 0.7% 0.4%
8 Acetate Content 4.7%~9.0% 8.8%
9 Water Content(Karl Fischer) d5.0% 2.0%
10 Bacterial Endotoxins d16.7IU/mg Conforms
11 Peptide Content e80.0% 90.2%
12 Assay(By Anhydrous,Acetic Acid-free) 97.0^103.0% 100.5%