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99% High Purity and Top Quality Leuprorelin acetate with reasonable price on Hot Selling 74381-53-6 !!
1-9 Kilogram
$253.33
≥ 10 Kilogram
$253.23
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Est. 7 days production
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Product name: Leuprorelin Acetate
CAS No: 53714-56-0
Formula : C59H84N16O12
Appearance White powder
purity 98%MIN
Assay HPLC;LC-MS;HNRM
GnRH analogues.S gonadorelin role with cloth.Repeat given large doses of luteinizing generated releasing hormone (LH - RH) or its highly active derivatives light c gonadorelin acetate, immediately after the first dose to produce a pituitary gonad system of sexual excitation (acute), and then inhibit pituitary gonadotropins to generate and release.It also further inhibit ovarian and testicular reactions to gonadotropin, thereby reducing the generation of estradiol and t(chronic).Light c gonadorelin acetate luteinizing hormone (LH) generated release activity about LH - 100 times of RH, its inhibition of pituitary gonad function is stronger than the effect of LH - RH.
Light c gonadorelin acetate is highly active LH - RH derivatives, due to its resistance to protein decomposing enzyme and affinity for the LH and RH receptors are stronger than LH and RH, so can effectively restrain the function of the pituitary gonad system.
An LH-RH (GnRH) analog, leuprolide may be used in the treatment of hormone-responsive cancers such as prostate cancer or breast cancer, estrogen-dependent conditions (such as endometriosis or uterine fibroids), to treat precocious puberty,and to control ovarian stimulation in In Vitro Fertilization (IVF). It is considered a possible treatment for paraphilias.
ITEMS | SPECIFICATION | RESULT |
Appearance | White powder | Conforms |
Solubility | Soluble in water or 1% acetic acid at a concentration of ≥1mg/ml to give a clear, colorless solution | Conforms |
Identity | A. IR Same with the reference spectrum of Leuprolide B. HPLC Same with the reference solution C. Amino Acid Analysis Ser: Present Glu: 0.85~1.1 Pro: 0.85~1.1 Leu: 1.80~2.2 Tyr: 0.85~1.1 His: 0.85~1.1 Arg: 0.85~1.1 Trp: Present |
Conforms
Conforms
0.84 0.97 1.04 2.02 1.01 0.99 1.00 present |
Specific Optical Rotation | -38.0~-42.0° [a]20D(c=1,1% HAc) | -39.2° |
RelatedSubstance (By HPLC) | Total Impurities(%)≤2.5% acetyl-leuprolide≤1.0% D-His-leuprolide≤0.5% L-Leu6-leuprolide≤0.5% D-Ser-leuprolide≤0.5% Any other Impurity≤0.5% | 0.21% Conforms Conforms Conforms Conforms 0.2% |
Acetate Content(By HPLC) | 4.7~9.0% | 8.7% |
Water Content(Karl Fischer) | ≤5.0% | 1.4% |
Sulphate ash | ≤0.3% | Conforms |
Bacterial Endotoxins | ≤16.7 IU/mg | Conforms |
Residual Organic Solvents | Acetonitrile ≤0.041%(By GC) DMF ≤0.088%(By GC) MEOH ≤0.3%(By GC) TFA ≤0.1%(By HPLC) | Conforms Conforms Conforms Conforms |
Assay(By Anhydrous, Acetic Acid-free ) | 97.0~103.0% | 98.1.0% |
Qingdao xigema Chemical Co.,Ltd is a global chemical industry manufacturers and suppliers of pharmaceuticals
and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of xigema is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
xigema has become the "Top 500 Chinese manufacturing companies","Top 20 of global chemical sales".xigema has 21 subsidiaries and holding companies.
Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2002.
Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account
Q4:Can you give me a discount price?
Surely,It depend on your qty
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q7:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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