Size | Price | Stock | Qty |
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10mg |
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25mg |
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50mg |
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100mg |
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250mg |
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Other Sizes |
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Purity: ≥98%
Cetrorelix mono-acetate (SB-75) is a novel, potent and synthetic gonadotropin-releasing hormone (GnRH) receptor antagonist with an IC50 of 1.21 nM. Cetrorelix acetate is a decapeptide that may be applied to the treatment of infertility. An autocrine regulatory system of cell proliferation has been shown to be triggered by the expression of GnRH (GnRH-I, LHRH) and its receptor in a variety of human malignant tumors, including ovarian cancers. GnRH and its superagonistic analogs decrease the proliferation of human ovarian cancer cell lines in a dose- and time-dependent manner.
Targets |
GnRH ( IC50 = 1.21 nM )
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ln Vitro |
Cetrorelix Acetate inhibits the growth of the ES-2 cell line at 1000 ng/ml. The antiproliferative effects of Cetrorelix Acetate are similar to those of GnRH-I agonists, suggesting that the GnRH-I system in cancer cells may not be subject to the GnRH-I agonists and antagonists dichotomy[2].
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References |
Molecular Formula |
C72H96CLN17O16
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Molecular Weight |
1491.11
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Exact Mass |
1489.69
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CAS # |
145672-81-7
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Related CAS # |
Cetrorelix; 120287-85-6; Cetrorelix diacetate; 130143-01-0
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Appearance |
Powder
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SMILES |
C[C@H](C(=O)N)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](CCCNC(=O)N)NC(=O)[C@H](CC2=CC=C(C=C2)O)NC(=O)[C@H](CO)NC(=O)[C@@H](CC3=CN=CC=C3)NC(=O)[C@@H](CC4=CC=C(C=C4)Cl)NC(=O)[C@@H](CC5=CC6=CC=CC=C6C=C5)NC(=O)C.CC(=O)O
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InChi Key |
KFEFLCOCAHJBEA-ANRVCLKPSA-N
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InChi Code |
InChI=1S/C70H92ClN17O14.C2H4O2/c1-39(2)31-52(61(94)82-51(15-9-28-77-69(73)74)68(101)88-30-10-16-58(88)67(100)79-40(3)59(72)92)83-60(93)50(14-8-29-78-70(75)102)81-63(96)54(34-43-20-25-49(91)26-21-43)86-66(99)57(38-89)87-65(98)56(36-45-11-7-27-76-37-45)85-64(97)55(33-42-18-23-48(71)24-19-42)84-62(95)53(80-41(4)90)35-44-17-22-46-12-5-6-13-47(46)32-44;1-2(3)4/h5-7,11-13,17-27,32,37,39-40,50-58,89,91H,8-10,14-16,28-31,33-36,38H2,1-4H3,(H2,72,92)(H,79,100)(H,80,90)(H,81,96)(H,82,94)(H,83,93)(H,84,95)(H,85,97)(H,86,99)(H,87,98)(H4,73,74,77)(H3,75,78,102);1H3,(H,3,4)/t40-,50-,51+,52+,53-,54+,55-,56-,57+,58+;/m1./s1
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Chemical Name |
(2S)-1-[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2R)-2-[[(2R)-2-acetamido-3-naphthalen-2-ylpropanoyl]amino]-3-(4-chlorophenyl)propanoyl]amino]-3-pyridin-3-ylpropanoyl]amino]-3-hydroxypropanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-5-(carbamoylamino)pentanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]-N-[(2R)-1-amino-1-oxopropan-2-yl]pyrrolidine-2-carboxamide;acetic acid
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Synonyms |
SB 075 acetate; NS-75-A; SB075 acetate; NS-75 A; Cetrorelix acetate; Cetrorelix; Cetrotide; D 20761; D-20761; D20761; NS-75A; NS 75A; SB-075 acetate
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light. |
Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
DMSO: ~50 mg/mL (~33.5 mM)
H2O: ~2 mg/mL (~1.3 mM) |
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Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400  (Please use freshly prepared in vivo formulations for optimal results.) |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 0.6706 mL | 3.3532 mL | 6.7064 mL | |
5 mM | 0.1341 mL | 0.6706 mL | 1.3413 mL | |
10 mM | 0.0671 mL | 0.3353 mL | 0.6706 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
NCT05972902 | Recruiting | Drug: Dydrogesterone Drug: Cetrorelix acetate Drug: Triptorelin |
IVF | Beni-Suef University | July 15, 2023 | Phase 3 |
NCT03680053 | Recruiting | Drug: Duphaston Drug: Cetrorelix |
Infertility ART |
ShangHai Ji Ai Genetics & IVF Institute |
April 10, 2020 | Not Applicable |
NCT06023602 | Not yet recruiting | Drug: Generic cetrorelix acetate Drug: Reference cetrorelix acetate |
Infertility | Northwest Women's and Children's Hospital, Xi'an, Shaanxi |
December 1, 2023 | Not Applicable |
NCT05738382 | Not yet recruiting | Drug: BG2109 Drug: Cetrorelix |
Assisted Reproductive Technology Controlled Ovarian Hyperstimulation |
Bio Genuine (Shanghai) Biotech Co., Ltd. |
August 2023 | Phase 2 |
NCT05951400 | Not yet recruiting | Drug: Dydrogesterone Tablets Drug: Cetrorelix |
IVF PCO |
Beni-Suef University | August 20, 2023 | Phase 2 Phase 3 |