MedKoo Cat#: 100675 | Name: Octreotide acetate
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

Octreotide is a synthetic long-acting cyclic octapeptide with pharmacologic properties mimicking those of the natural hormone somatostatin. Octreotide is a more potent inhibitor of growth hormone, glucagon, and insulin than somatostatin. Similar to somatostatin, this agent also suppresses the luteinizing hormone response to gonadotropin-releasing hormone, decreases splanchnic blood flow, and inhibits the release of serotonin, gastrin, vasoactive intestinal peptide (VIP), secretin, motilin, pancreatic polypeptide, and thyroid stimulating hormone.

Chemical Structure

Octreotide acetate
Octreotide acetate
CAS#79517-01-4 (acetate)

Theoretical Analysis

MedKoo Cat#: 100675

Name: Octreotide acetate

CAS#: 79517-01-4 (acetate)

Chemical Formula: C51H70N10O12S2

Exact Mass: 0.0000

Molecular Weight: 1079.30

Elemental Analysis: C, 56.76; H, 6.54; N, 12.98; O, 17.79; S, 5.94

Price and Availability

Size Price Availability Quantity
10mg USD 285.00 2 Weeks
50mg USD 650.00 2 Weeks
1g USD 2,950.00 2 Weeks
2g USD 5,450.00 2 Weeks
5g USD 9,650.00 2 Weeks
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Synonym
Longastatin; Sandostatin; Longastatina; Samilstin; Sandostatina; Sandostatine; SMS 201995; SMS201995; SMS-201995
IUPAC/Chemical Name
(4R,7S,10S,13S,16S,19R)-13-((1H-indol-3-yl)methyl)-19-((S)-2-amino-3-phenylpropanamido)-10-(4-aminobutyl)-16-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide acetate
InChi Key
XQEJFZYLWPSJOV-RJVYUNNPSA-N
InChi Code
InChI=1S/C49H66N10O10S2.C2H4O2/c1-28(61)39(25-60)56-48(68)41-27-71-70-26-40(57-43(63)34(51)21-30-13-5-3-6-14-30)47(67)54-37(22-31-15-7-4-8-16-31)45(65)55-38(23-32-24-52-35-18-10-9-17-33(32)35)46(66)53-36(19-11-12-20-50)44(64)59-42(29(2)62)49(69)58-41;1-2(3)4/h3-10,13-18,24,28-29,34,36-42,52,60-62H,11-12,19-23,25-27,50-51H2,1-2H3,(H,53,66)(H,54,67)(H,55,65)(H,56,68)(H,57,63)(H,58,69)(H,59,64);1H3,(H,3,4)/t28-,29-,34+,36+,37+,38+,39-,40+,41+,42+;/m1./s1
SMILES Code
[H]N[C@H](C(N[C@H]1CSSC[C@@H](C(N[C@@H]([C@H](O)C)CO)=O)NC([C@H]([C@H](O)C)NC([C@@H](NC([C@@H](NC([C@@H](NC1=O)CC2=CC=CC=C2)=O)CC3=CNC4=C3C=CC=C4)=O)CCCCN)=O)=O)=O)CC5=CC=CC=C5.CC(O)=O
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO, not in water
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info
  DRUG DESCRIPTION Sandostatin® (octreotide acetate) Injection, a cyclic octapeptide prepared as a clear sterile solution of octreotide, acetate salt, in a buffered lactic acid solution for administration by deep subcutaneous (intrafat) or intravenous injection. Octreotide acetate, known chemically as L-Cysteinamide, D-phenylalanyl-L-cysteinyl-L-phenylalanyl-D-tryptophyl-L-lysyl-Lthreonyl-N-[2-hydroxy-1-(hydroxymethyl)propyl]-, cyclic (2→7)-disulfide; [R-(R*, R*)] acetate salt, is a long-acting octapeptide with pharmacologic actions mimicking those of the natural hormone somatostatin. Sandostatin Injection is available as: sterile 1-mL ampuls in 3 strengths, containing 50, 100, or 500 mcg octreotide (as acetate), and sterile 5-mL multi-dose vials in 2 strengths, containing 200 and 1000 mcg/mL of octreotide (as acetate).   Lactic acid and sodium bicarbonate are added to provide a buffered solution, pH to 4.2 ±0.3.  The molecular weight of octreotide acetate is 1019.3 (free peptide, C49H66N10O10S2)   CLINICAL PHARMACOLOGY Sandostatin® (octreotide acetate) exerts pharmacologic actions similar to the natural hormone, somatostatin. It is an even more potent inhibitor of growth hormone, glucagon, and insulin than somatostatin. Like somatostatin, it also suppresses LH response to GnRH, decreases splanchnic blood flow, and inhibits release of serotonin, gastrin, vasoactive intestinal peptide, secretin, motilin, and pancreatic polypeptide. By virtue of these pharmacological actions, Sandostatin has been used to treat the symptoms associated with metastatic carcinoid tumors (flushing and diarrhea), and Vasoactive Intestinal Peptide (VIP) secreting adenomas (watery diarrhea). Sandostatin substantially reduces growth hormone and/or IGF-I (somatomedin C) levels in patients with acromegaly. Single doses of Sandostatin have been shown to inhibit gallbladder contractility and to decrease bile secretion in normal volunteers. In controlled clinical trials the incidence of gallstone or biliary sludge formation was markedly increased (see WARNINGS). Sandostatin suppresses secretion of thyroid stimulating hormone (TSH).    
Product Data
Biological target:
Octreotide acetate, a long-acting synthetic analog of native somatostatin, inhibits growth hormone, glucagon, and insulin more potently.
In vitro activity:
Results revealed that Octreotide notably enhanced cell viability and reduced LDH activity. The levels of inflammatory factors were significantly decreased following Octreotide treatment. Additionally, Octreotide attenuated the apoptotic capacity of LPS-induced BEAS-2B cells, led to the up-regulation of Bcl-2 protein level while cut down the protein levels of Bax and cleaved caspase3. Remarkably, the expression of autophagy-related protein LC3II/I and Beclin1 was elevated after Octreotide administration. Reference: Bioengineered. 2022 Jan;13(1):217-226. https://pubmed.ncbi.nlm.nih.gov/34898367/
In vivo activity:
The aim of the present study was to verify the effects of octreotide on hepatic glycogenesis in rats with HFD‑induced obesity. The body weight, levels of FPG and FINS, and the HOMA index were significantly reduced following octreotide treatment, whereas the decrease in Lee's index, the blood levels of ALT, AST, TC, TG and FFA, and the AUC did not reach statistical significance. Hepatic TG and FFA levels were significantly increased and hepatic glycogen content was significantly decreased in rats with HFD‑induced obesity when compared with those in the control group. Octreotide intervention restored these alterations. Reference: Mol Med Rep. 2017 Jul;16(1):109-118. https://pubmed.ncbi.nlm.nih.gov/28534956/
Solvent mg/mL mM
Solubility
DMSO 29.0 24.55
Water 25.0 21.16
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 1,079.30 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
1. Zhang S, Tang C, Wang X. Octreotide activates autophagy to alleviate lipopolysaccharide-induced human pulmonary epithelial cell injury by inhibiting the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway. Bioengineered. 2022 Jan;13(1):217-226. doi: 10.1080/21655979.2021.2012908. PMID: 34898367; PMCID: PMC8805934. 2. Kim SE, Kim J, Lee JY, Lee SB, Paik JS, Yang SW. Octreotide inhibits secretion of IGF-1 from orbital fibroblasts in patients with thyroid-associated ophthalmopathy via inhibition of the NF-κB pathway. PLoS One. 2021 Apr 22;16(4):e0249988. doi: 10.1371/journal.pone.0249988. PMID: 33886620; PMCID: PMC8062018. 3. Kugita M, Nishii K, Yamaguchi T, Suzuki A, Yuzawa Y, Horie S, Higashihara E, Nagao S. Beneficial effect of combined treatment with octreotide and pasireotide in PCK rats, an orthologous model of human autosomal recessive polycystic kidney disease. PLoS One. 2017 May 18;12(5):e0177934. doi: 10.1371/journal.pone.0177934. PMID: 28542433; PMCID: PMC5436842. 4. Wang XX, Ye T, Li M, Li X, Qiang O, Tang CW, Liu R. Effects of octreotide on hepatic glycogenesis in rats with high fat diet‑induced obesity. Mol Med Rep. 2017 Jul;16(1):109-118. doi: 10.3892/mmr.2017.6586. Epub 2017 May 16. PMID: 28534956; PMCID: PMC5482138.
In vitro protocol:
1. Zhang S, Tang C, Wang X. Octreotide activates autophagy to alleviate lipopolysaccharide-induced human pulmonary epithelial cell injury by inhibiting the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway. Bioengineered. 2022 Jan;13(1):217-226. doi: 10.1080/21655979.2021.2012908. PMID: 34898367; PMCID: PMC8805934. 2. Kim SE, Kim J, Lee JY, Lee SB, Paik JS, Yang SW. Octreotide inhibits secretion of IGF-1 from orbital fibroblasts in patients with thyroid-associated ophthalmopathy via inhibition of the NF-κB pathway. PLoS One. 2021 Apr 22;16(4):e0249988. doi: 10.1371/journal.pone.0249988. PMID: 33886620; PMCID: PMC8062018.
In vivo protocol:
1. Kugita M, Nishii K, Yamaguchi T, Suzuki A, Yuzawa Y, Horie S, Higashihara E, Nagao S. Beneficial effect of combined treatment with octreotide and pasireotide in PCK rats, an orthologous model of human autosomal recessive polycystic kidney disease. PLoS One. 2017 May 18;12(5):e0177934. doi: 10.1371/journal.pone.0177934. PMID: 28542433; PMCID: PMC5436842. 2. Wang XX, Ye T, Li M, Li X, Qiang O, Tang CW, Liu R. Effects of octreotide on hepatic glycogenesis in rats with high fat diet‑induced obesity. Mol Med Rep. 2017 Jul;16(1):109-118. doi: 10.3892/mmr.2017.6586. Epub 2017 May 16. PMID: 28534956; PMCID: PMC5482138.
 1: Seymour N, Sawh SC. Mega-dose intravenous octreotide for the treatment of carcinoid crisis: a systematic review. Can J Anaesth. 2013 May;60(5):492-9. doi: 10.1007/s12630-012-9879-1. Epub 2013 Jan 18. Review. PubMed PMID: 23328959. 2: Glatstein M, Scolnik D, Bentur Y. Octreotide for the treatment of sulfonylurea poisoning. Clin Toxicol (Phila). 2012 Nov;50(9):795-804. doi: 10.3109/15563650.2012.734626. Epub 2012 Oct 10. Review. PubMed PMID: 23046209. 3: Shin JK, Jung YH, Bae MN, Baek IW, Kim KJ, Cho CS. Successful treatment of protein-losing enteropathy due to AA amyloidosis with octreotide in a patient with rheumatoid arthritis. Mod Rheumatol. 2013 Mar;23(2):406-11. doi: 10.1007/s10165-012-0675-0. Epub 2012 Jul 20. Review. PubMed PMID: 22815005. 4: Cozzi R, Attanasio R. Octreotide long-acting repeatable for acromegaly. Expert Rev Clin Pharmacol. 2012 Mar;5(2):125-43. doi: 10.1586/ecp.12.4. Review. PubMed PMID: 22390555. 5: Bomanji JB, Papathanasiou ND. ¹¹¹In-DTPA⁰-octreotide (Octreoscan), ¹³¹I-MIBG and other agents for radionuclide therapy of NETs. Eur J Nucl Med Mol Imaging. 2012 Feb;39 Suppl 1:S113-25. doi: 10.1007/s00259-011-2013-8. Review. PubMed PMID: 22388626. 6: Mercadante S, Porzio G. Octreotide for malignant bowel obstruction: twenty years after. Crit Rev Oncol Hematol. 2012 Sep;83(3):388-92. doi: 10.1016/j.critrevonc.2011.12.006. Epub 2012 Jan 25. Review. PubMed PMID: 22277783. 7: Yildirim AE, Altun R, Can S, Ocal S, Akbaş E, Korkmaz M, Selçuk H, Yilmaz U. Idiopathic chylous ascites treated with total parenteral nutrition and octreotide. A case report and review of the literature. Eur J Gastroenterol Hepatol. 2011 Oct;23(10):961-3. doi: 10.1097/MEG.0b013e328349aa2d. Review. PubMed PMID: 21817913. 8: Murphy E, Prommer EE, Mihalyo M, Wilcock A. Octreotide. J Pain Symptom Manage. 2010 Jul;40(1):142-8. Review. PubMed PMID: 21634046. 9: Li J, Wang R, Tang C. Somatostatin and octreotide on the treatment of acute pancreatitis - basic and clinical studies for three decades. Curr Pharm Des. 2011;17(16):1594-601. Review. PubMed PMID: 21548873. 10: Varas-Lorenzo MJ. Long-standing malignant pancreatic carcinoid treated with octreotide. Rev Esp Enferm Dig. 2010 Nov;102(11):662-6. Review. PubMed PMID: 21142389.