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MONOCROTALINE Suppliers list
Company Name: Chengdu Biopurify Phytochemicals Ltd.
Tel: +8618482058008
Products Intro: Product Name:Monocrotaline
Purity:90%~98% HPLC Package:20mg;100mg;500mg;1g Remarks:BP0957
Company Name: Hebei baicao biology science and technology co., ltd
Tel: +86-86-0000000000-0000 +8617824879454
Products Intro: Product Name:Monocrotaline
Purity:99% Package:1kg;90USD
Company Name: Hangzhou FandaChem Co.,Ltd.
Tel: +8615858145714
Products Intro: Product Name:MONOCROTALINE
Purity:As coa Package:As request Remarks:315-22-0
Company Name: Shanghai Zheyan Biotech Co., Ltd.
Tel: 18017610038
Products Intro: Product Name:Crotaline
Purity:HPLC>=99% Package:20mg/100mg
Company Name: career henan chemical co
Tel: +86-0371-86658258
Products Intro: Product Name:MONOCROTALINE
Purity:98% Package:1KG;1USD

MONOCROTALINE manufacturers

  • Monocrotaline
  • $90.00 / 1kg
  • 2022-05-06
  • CAS:315-22-0
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 100MT
  • Monocrotaline
  • $0.00 / 20mg
  • 2020-05-11
  • CAS:315-22-0
  • Min. Order: 5mg
  • Purity: ≥98%(HPLC)
  • Supply Ability: 10 g
MONOCROTALINE Basic information
Description References
Product Categories:Inhibitors;Amines;Heterocycles;chemical reagent;pharmaceutical intermediate;phytochemical;Miscellaneous Natural Products;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract
Mol File:315-22-0.mol
MONOCROTALINE Chemical Properties
Melting point 204 °C (dec.) (lit.)
alpha -54.8o (C=5 IN CHLOROFORM)
Boiling point 463.55°C (rough estimate)
density 1.1512 (rough estimate)
refractive index 1.5500 (estimate)
storage temp. 2-8°C
solubility Soluble in DMSO (up to 50 mg/ml with warming), in Ethanol (up to 10 mg/ml with warming) or in organic solvents such as Chloroform (up to 50 mg/ml)
form neat
color White
Water Solubility 11.86g/L(temperature not stated)
Merck 13,6274
BRN 48732
Stability:Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 1 month.
IARC2B (Vol. 10, Sup 7) 1987
EPA Substance Registry SystemMonocrotaline (315-22-0)
Safety Information
Hazard Codes T
Risk Statements 25-40-35
Safety Statements 36/37/39-45
RIDADR UN 1544 6.1/PG 3
WGK Germany 3
RTECS QB3140000
HazardClass 6.1(b)
PackingGroup III
HS Code 29399990
Hazardous Substances Data315-22-0(Hazardous Substances Data)
ToxicityLD50 orally in rats: 71 mg/kg (Newberne)
MSDS Information
ACROS English
SigmaAldrich English
MONOCROTALINE Usage And Synthesis
DescriptionMonocrotaline (MCT) is a toxic 11-membered macrocyclic pyrrolizidine alkaloid (PA) derived from the seeds of the Crotalaria spectabilis plant. It poisons livestock and humans through the ingestion of contaminated grains and other foods. Pyrrolizidine alkaloid is activated by cytochrome P450 to the reactive pyrrole metabolite dehydromonocrotaline (MCTP) in the liver. The alkaloid causes pulmonary artery hypertension, right ventricular hypertrophy, and pathological changes in the pulmonary vasculature.
Monocrotaline is produced for research use. It is used in rat model to investigate human pulmonary hypertension as it offers technical simplicity, reproducibility, and low cost compared with other models of pulmonary hypertension.
References[1] Jose G. Gomez-Arroyo, Laszlo Farkas, Aysar A. Alhussaini, Daniela Farkas, Donatas Kraskauskas, Norbert F. Voelkel, Harm J. Bogaard (2012) The monocrotaline model of pulmonary hypertension in perspective, Am J Physio Lung Cell Mol Phyisol, 302, L363-L369
DescriptionA hepatotoxic alkaloid of the pyrrolizidine group obtained from Crotalaria retusa and C. spectabilis, the base is laevorotatory with [α]26D - 55.7° (CHCI3). It may be characterized as the hydrochloride, m.p. 184°C ldec.); [α]28D - 38.4° (H20) and the methiodide which crystallizes from MeOH with 3 moles of solvent, m.p. 205°C (dry, dec.); [α]28D + 23.4° (MeOH). Hydrolysis with boiling Ba(OHh furnishes retronecine and monocrotic acid, C7H120 3, b.p. 145-6°C/ 18 mm which is optically inactive. This acid yields a methyl ester, b.p. 94-6°Cj 18 mm, a p-bromophenacyl ester, m.p. 78°C and a 2:4-dinitrophenylhydrazone, m.p. 95-6°C. Hydrogenation in the presence of Pt02 as catalyst yields retro_x0002_necanol and monocrotalic acid, CSH120S' m.p. 181-2°C; [α]28D - 5.33° (H20) which gives a methyl ester, m.p. 79-800 C; [α]30D - 16.2° (EtOH) and a pbromophenacyl ester, m.p. 162-3°C.
Chemical PropertiesWhite to light tan powder
Physical propertiesAppearance: white prism crystal. Solubility: soluble in methanol, ethanol, and chloroform; slightly soluble in benzene, water, ether, and acetone; insoluble in petroleum ether. Melting point: 197–198 °C. Specific optical rotation: ?54.7 ° (in chloroform).
HistoryIn 1935, W.?M. Neil and L.?L. Russoff isolated monocrotaline from Crotalaria sessiliflora L.?Monocrotaline showed anticancer activity in?vivo, especially for treating squamous cell carcinoma, cervical cancer, and leukemia. However, since many pyrrolizidine alkaloid compounds have hepatotoxicity, further development of these compounds is restricted.
China began the research of monocrotaline, as early as 1943. Crotalaria sessiliflora L. was also recorded in the 1977 edition of the Pharmacopoeia of the People’s Republic of China. But monocrotaline was reported for its liver toxicity; teratogenic, allergic reactions; and other side effects, limiting its further clinical applications. In 1992, the Ministry of Health stopped the clinical application of monocrotaline injection. Further pharmacology study is essential for monocrotaline .
Crotaline has been used in hydrochloric acid (HCl) and injected into experimental animals to induce-pulmonary hypertension.
Usesantineoplastic, insect sterilant
UsesA toxic pyrrolizidine alkaloid isolated from Crotalaria spp. It is used for inducing pulmonary diseases in rats.
IndicationsThis product is available in the Pharmacopoeia of the People’s Republic of China (1977).
Clinical available formulations include gel and liposome transdermal preparations. It is effective in treating skin cancer, basal cell carcinoma, acute leukemia, and cervical and penile cancer.
General Description
This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG
Biochem/physiol ActionsCrotaline induces pulmonary vascular syndrome in rats. It is considered toxic and results in hepatic cirrhosis, enlarged liver, sinusoidal obstruction syndrome and right ventricular hypertrophy.
PharmacologyMonocrotaline is a pyrrolizidine alkaloid which has anticancer and anti-choline effects. In vitro study suggested that monocrotaline has significant cytotoxicity in human BEL-7402, KB cancer cells through inducing DNA alkylation . Monocrotaline’s toxicity is low, but its metabolites in the liver have high liver toxicity. The metabolites are highly electrophilic and can bind to enzymes, proteins, DNA, and RNA, thus causing several side effects. Monocrotaline can reduce blood pressure and inhibit cardiac contractility and heart rate and also shows mild inhibition of respiratory rate and depth.
Clinical UseMonocrotaline injection shows well therapeutic effect for treating squamous cell carcinoma and basal cell carcinoma. In folk, the fresh pulp or dry powder of the herb has been also used for treating squamous cell carcinoma and basal cell carcinoma .
Safety ProfileSuspected carcinogen with experimental carcinogenic data. Poison by ingestion, intravenous, intraperitoneal, and subcutaneous routes. Human mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Purification MethodsCrotaline forms prisms from absolute EtOH and recrystallises also from CHCl3. UV in 96% EtOH has max 217nm (log  3.32). [Adams et al. J Am Chem Soc 74 5612 1952, Culvenor & Smith Aust J Chem 10 474 1957.] The hydrochloride has m 212-214o (from MeOH/Et2O) and [] D28 -38.4o (c 5, H2O) [Adams & Gianturco J Am Chem Soc 78 1922 1956]. The picrate has m 230-231.5o(dec) [Adams et al. J Am Chem Soc 74 5614 1952]. [Beilstein 27 III/IV 6660.]
ReferencesAdams, Rogers., J. Amer. Chern. Soc., 61,2815 (1939)
MONOCROTALINE Preparation Products And Raw materials
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