Specification :

Gonadorelin Acetate
CAS NO 34973-08-5
purity : 98% min

1 Assay( ByAnhydrous, AceticAcid-free) 95.0^ 102.0% 98.5%
2 Appearance White to Off-white powder Complies
3 Solubility Soluble in water and in a 1% glacial acetic acid Complies
4 Identity ( by HPLC) The retention is same with the reference substance Complies
5 Identity ( by TLC) The principal spot corresponds in position and size to the reference substance Complies
6 Appearance of Solution 10mg/ ml solution is clear and not more intensely colored than reference solution Complies
7 Specific Optical Rotation -54.0^ -66.0° ( c= 1, 1% HAc) -62.8°
8 Absorbance ( by UV) 0.55~ 0.61 ( c= 0.1mg/ ml H2O, » max= 278nm 0.57
9 Amino Acid Composition Ser: 0.7^ 1.05 Glu: 0.95^ 1.05 Pro: 0.95^ 1.05 Gly: 1.90^ 2.10 Leu: 0.90^ 1.10 Tyr: 0.7~ 1.05 His: 0.95~ 1.05 Arg: 0.95~ 1.05 Trp: Presnt 0.93 0.98 1.02 2.01 0.95 1.01 0.99 1.00 Present
10 Related Substance ( By HPLC) Total Impurities ( % ) d5.0% Largest Single Impurity ( % ) d 2.0% 1.5% 0.6%
11 Acetate Content ( By HPLC) 4.0~ 7.5% 4.7%
12 Water Content ( Karl Fischer) d7.0% 2.7%
13 Bacterial Endotoxins d70IU/ mg Complies