J. Phys. Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others. Stable. In some cases, a COA may not be available on-line. Chim. NIST subscription sites provide data under the Identification of drugs by principal components analysis of standardized TLC data in four eluent systems and of retention indices on SE 30, J. Anal. [all data], Guo, Sadiq, et al., 2010 Lot and Batch Numbers can be found on a product's label The boiling is much higher. This value only indicates that sublimation will be noticed above that point. System Maintenance Alert: ; Mader, W.J. ; Kiburis, J.C.; Jurs, P.C., Prediction of Gas Chromatographic Relative Retention Times of Stimulants and Narcotics, Anal. Khim., , 1986, 1438-1443. umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Start T: 220 C; CAS no: 58082; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.2 um; Data type: Kovats RI; Authors: Phillips, A.M.; Logan, B.K. Forensic Sci., 17(2), 1984, 41-49. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 120 C; End T: 280 C; End time: 5 min; CAS no: 58082; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Perrigo, B.J. Thermodynamic properties of caffeine crystal forms, Food Chem., 29, 1981, 366-370. umn class: Standard non-polar; Column type: Packed; Start T: 250 C; CAS no: 58082; Active phase: OV-1; Carrier gas: N2; Substrate: Chromosorb G; Data type: Kovats RI; Authors: Machata, G.; Vycudilik, W., Gas chromatographic analysis of illicit heroin samples, J. Anal. -021. It is also moderately soluble in ethanol (1.5 g/100 mL). Acta, 1984, 72, 31. 1,3,7-Trimethylxanthine, A, 774, 1997, 321-332. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 120 C; End T: 280 C; End time: 5 min; CAS no: 58082; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Perrigo, B.J. ; Perrigo, B., A practical gas chromatographic screening procedure for toxicological analysis, Can.Soc.Forens.Sci.J., 9(2), 1975, 69-74. ass: Standard non-polar; Column length: 6 ft; Column type: Packed; Heat rate: 8 K/min; Start T: 130 C; End T: 290 C; End time: 8 min; Start time: 2 min; CAS no: 58082; Active phase: SE-30; Carrier gas: Nitrogen; Substrate: Chromosorb W AW DMS (80-100 mesh); Data type: Normal alkane RI; Authors: Peel, H.W. About Us | shall not be liable for any damage that may result from ; Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) ; McLean, S., Automated screening procedure using gas chromatography-mass spectrometry for identification of drugs after their extraction from biological samples, J. caffeine biosynthesis II (via paraxanthine), Component of coffee beans ( Coffea arabica ), many other Coffea spp., chocolate ( Theobroma cacao ), tea ( Camellia thea ), kolanut ( Cola acuminata ) and several other Cola, Biochemicals & small molecules/Antagonists & inhibitors, caffeine + a demethylated methyl donor -> theophylline + a methylated methyl donor. Chromatogr., 223, 1981, 1-19. ass: Standard non-polar; Column length: 25 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 75 C; End T: 280 C; Start time: 7 min; CAS no: 58082; Active phase: OV-101; Carrier gas: He; Data type: Normal alkane RI; Authors: Spiteller, M.; Spiteller, G., Trennung und charakterisierung saurer harnbest and- teile, J. Ohm, A.; Lippold, B.C., you enter 062K1064. Drug Monit., 23(1), 2001, 61-70. umn class: Standard non-polar; Column diameter: 0.22 mm; Column length: 25 m; Column type: Capillary; Start T: 200 C; CAS no: 58082; Active phase: BP-1; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Japp, M.; Gill, R.; Osselton, M.D., Comparison of drug retention indices determined on packed, wide bore capillary and narrow bore capillary columns, J. Forensic Sci., 32(6), 1987, 1574-1586. umn class: Standard non-polar; Column diameter: 0.53 mm; Column length: 25 m; Column type: Capillary; Start T: 200 C; CAS no: 58082; Active phase: BP-1; Carrier gas: N2; Phase thickness: 1 um; Data type: Kovats RI; Authors: Japp, M.; Gill, R.; Osselton, M.D., Comparison of drug retention indices determined on packed, wide bore capillary and narrow bore capillary columns, J. Forensic Sci., 32(6), 1987, 1574-1586. umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 180 C; CAS no: 58082; Active phase: SE-30; Carrier gas: N2; Substrate: 1% se-30 on Anachrom ABS(80-100mesh); Data type: Kovats RI; Authors: Musumarra, G.; Scarlata, G.; Romano, G.; Cappello, G.; Clementi, S.; Giulietti, G., Qualitative organic analysis. Journal of Pharmaceutical and Biomedical Analysis, 2005, 39, 5, 944-950, https://doi.org/10.1016/j.jpba.2005.06.011 This produces toxic fumes including nitrogen oxides. ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agency’s EPISuite™, Compounds with the same molecular formula, Search Google for structures with same skeleton. (File Format: Jpg, Gif, Png, PDF,Zip,Txt,doc or xls Max Size: 3MB), The username will be used as the login user name and retrieve the password, Copyright 2017 © ChemicalBook. presented with a COA Request form. Caffeine do not vaporizes at this temperature because it has a boiling point of 178 0 C and a melting point of 238 0 C. The impure caffeine had a melting point range of 223.6-229.3 0 C. This suggested that it contained impurity. Med., 33, 1975, 185-191. umn class: Standard non-polar; Column length: 6 ft; Column type: Packed; CAS no: 58082; Active phase: OV-1; Carrier gas: N2; Substrate: Chromosorb G, AW-DMCS; Data type: Kovats RI; Authors: Berninger, H.; Grunnagel, R.; Mall, S.; Moller, M.R., Gas chromatographic identification of unknown substances from body fluids by menas of retention indices, Beitr. If you find a lot number with a filling-code such as NIST Standard Reference Toxicol., 19, 1995, 316-322. ass: Standard non-polar; Column diameter: 0.75 mm; Column length: 30 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 155 C; End T: 290 C; End time: 10 min; Start time: 4 min; CAS no: 58082; Active phase: SPB-1; Carrier gas: He; Phase thickness: 10 um; Data type: Normal alkane RI; Authors: Coudore, F.; Alazard, J.-M.; Paire, M.; Andraud, G.; Lavarenne, J., Rapid toxicological screening of barbiturates in plasma by wide-bore capillary gas chromatography and nitrogen-phosphorus detection, J. Anal. Pricing & availability is not currently available. [all data], Dong, Li, et al., 2007 62K1064 – you will only find the COO if ; Ballantyne, D.J. ; Wyatt, D.K. Toxicol., 8, 1984, 129-134. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 120 C; End T: 280 C; End time: 5 min; CAS no: 58082; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Perrigo, B.J. Mobilizes calcium from intracellular stores and inhibits benzodiaz Berichte der Bunsengesellschaft für physikalische Chemie, 2010, 88, 9, 862-865, https://doi.org/10.1002/bbpc.19840880918 Journals | Melting point standard 235-237°C 1 Product Result | Match Criteria: Property . Disclaimer, Copyright © 2018 ChemSrc All Rights Reserved. Copyright for NIST Standard Reference Data is governed by 1,3,7-Trimethyl-3,7-dihydro-1H-purine-2,6-dione, InChI=1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3, InChI=1/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3, Except where otherwise noted, data are given for materials in their, "Factors Affecting Caffeine Toxicity: A Review of the Literature", https://en.wikipedia.org/w/index.php?title=Caffeine_(data_page)&oldid=977504776, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, 227 to 228 °C (441 to 442 °F; 500 to 501 K) (anhydrous), This page was last edited on 9 September 2020, at 06:59. Beilstein/REAXYS Number 17705 . Sigma-Aldrich offers Sigma-Aldrich-41019, Caffeine Melting point standard 235-237°C for your research needs. B, 788, 2003, 243-250. ass: Semi-standard non-polar; Column diameter: 0.53 mm; Column length: 15 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 90 C; End T: 320 C; CAS no: 58082; Active phase: DB-5; Carrier gas: He; Phase thickness: 1.5 um; Data type: Normal alkane RI; Authors: Takeda, A.; Tanaka, H.; Shinohara, T.; Ohtake, I., Systematic analysis of acid, neutral and basic drugs in horse plasma by combination of solid-phase extraction, non-aqueous partitioning and gas chromatography-mass spectrometry, J. Chromatogr. Site Use Terms ; Davies, N.W. Chim. TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director As caffeine is heated, some sublimation is noticed before the melting point is reached. Mol. Ebeling, H.; Franck, E.U., Melting points are a unique property of pure substances. Slightly soluble in water, solubility is increased by adding dilute acid. in these sites and their terms of usage. ; Urso, A.; Geleta, L., Broad spectrum analysis of municipal and industrial effluents discharged into the Peace, Athabasca and Slave river basins: characterization of effluent samples, 1994 - Volume 1 of 2, Northern River Basins Study Project Report No. It overrides the cell cycle effects of various chemicals such as protease inhibitors, preventing apoptosis; and it has been shown to inhibit cellular DNA repair mechanisms. Cryst. Chromatogr., 565, 1991, 207-224. ass: Standard non-polar; Column diameter: 0.26 mm; Column length: 30 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 120 C; End T: 280 C; End time: 22 min; Start time: 1 min; CAS no: 58082; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Manca, D.; Ferron, L.; Weber, J-P., A System for Toxicological Screening by Capillary Gas Chromatography with Use of Drug Retention Index Based on Nitrogen-Containing Reference Compounds, Clin. Thus, levels of cAMP increase in cells following treatment with caffeine. R22:Harmful if swallowed. Caffeine Melting point standard, pharmaceutical secondary standard; traceable to USP Synonym: 1,3,7-Trimethylxanthine CAS Number 58-08-2. Klous, Marjolein G.; Bronner, Gaby M.; Nuijen, Bastiaan; Ree, Jan M. van; Beijnen, Jos H., Contact HPLC Analysis of Acetaminophen, Caffeine, Chlorpheniramine, Ibuprofen, Naproxen, Phenylephrine, and Pseudoephedrine on Ascentis® Express C18, HPLC Analysis of Antihypertensive and Diuretic Drugs on Discovery® RP-Amide C16, HPLC Analysis of Beverage Additives in Diet Cola on Ascentis® Express C18, HPLC Analysis of Beverage Additives in Diet Cola on Ascentis® Express RP-Amide, HPLC Analysis of Bronchodilators Theophylline and Other Caffeine Metabolites in Serum on Discovery® RP-AmideC16 after SPE using Discovery® DSC-18, HPLC Analysis of Caffeine and Taurine on Ascentis® Express HILIC Column using Evaporative Light Scattering Detection (ELSD), HPLC Analysis of Caffeine and Taurine on Ascentis® Express HILIC Column using Evaporative Light Scattering Detection (ELSD, Fast Analysis), HPLC Analysis of Pain Relievers on Ascentis® Express C18, HPLC Analysis of an Energy Drink on Ascentis® Express HILIC (UV Detection), TLC Analysis Report of Analgesics on HPTLC Silica Gel 60 RP-18 WF254s (analyte set 2), TLC Analysis of Analgesics on HPTLC Silica Gel 60 RP-18 WF254s (analyte set 2), TLC Analysis of Expectorants on HPTLC Silica Gel 60 RP-18 WF254s, limited shelf life, expiry date on the label.

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