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Key Documents

PHR1151

Supelco

Theophylline melting point standard

Pharmaceutical Secondary Standard; Certified Reference Material

Sinonimo/i:

Theophylline, 1,3-Dimethylxanthine, 2,6-Dihydroxy-1,3-dimethylpurine, 3,7-Dihydro-1,3-dimethyl-1H-purine-2,6-dione

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About This Item

Formula empirica (notazione di Hill):
C7H8N4O2
Numero CAS:
Peso molecolare:
180.16
Beilstein:
13463
Numero CE:
Numero MDL:
Codice UNSPSC:
41116107
ID PubChem:
NACRES:
NA.24

Grado

certified reference material
pharmaceutical secondary standard

Livello qualitativo

agenzia

traceable to USP 1653117

Famiglia di API

theophylline

CdA

current certificate can be downloaded

tecniche

HPLC: suitable
gas chromatography (GC): suitable

Punto di fusione

~Approximately 272 °C

applicazioni

pharmaceutical (small molecule)

Formato

neat

Temperatura di conservazione

2-30°C

Stringa SMILE

CN1C(=O)N(C)c2[nH]cnc2C1=O

InChI

1S/C7H8N4O2/c1-10-5-4(8-3-9-5)6(12)11(2)7(10)13/h3H,1-2H3,(H,8,9)
ZFXYFBGIUFBOJW-UHFFFAOYSA-N

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Descrizione generale

Theophylline is a naturally occurring alkaloid. In addition to its bronchodilator, immunomodulatory and anti-inflammatory effects, it also acts as a respiratory stimulant, used in the treatment of asthma.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Applicazioni

Theophylline may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by spectrophotometry and chromatography techniques.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Azioni biochim/fisiol

Phosphodiesterase inhibitor; diuretic; cardiac stimulant; muscle relaxant; asthma medication.

Risultati analitici

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Altre note

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
Values of analytes vary lot to lot.

Nota a piè di pagina

To see an example of a Certificate of Analysis for this material enter LRAA7175 in the slot below. This is an example certificate only and may not be the lot that you receive.

Prodotti consigliati

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Prodotti correlati

N° Catalogo
Descrizione
Determinazione del prezzo

Pittogrammi

Skull and crossbonesHealth hazard

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 3 Oral - Repr. 1B

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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Certificati d'analisi (COA)

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Theophylline anhydrous, ≥99%, powder

Sigma-Aldrich

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Supelco

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USP

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Caffeina

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USP

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Theophylline

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Supelco

77634

Vanillina

Chemometrics-assisted UV-spectroscopic strategies for the determination of theophylline in syrups
Culzoni MJ, et al.
Journal of Pharmaceutical and Biomedical Analysis, 39(5), 1068-1074 (2005)
Theophylline in asthma
Weinberger M and Hendeles L
The New England Journal of Medicine, 334(21), 1380-1388 (1996)
Spectrophotometric determination of caffeine and theophylline in pure alkaloids and its application in pharmaceutical formulations.
Singh DK and Sahu A
Analytical Biochemistry, 349(2), 176-180 (2006)
Dosage of theophylline in bronchial asthma.
Piafsky KM and Ogilvie IR
The New England Journal of Medicine, 292(23), 1218-1222 (1975)
Simultaneous determination of caffeine, theobromine and theophylline in foods and pharmaceutical preparations by using ion chromatography.
Chen QC, et al.
Analytica Chimica Acta, 371(2-3), 287-296 (1998)

Articoli

Xanthine is a purine base found in most human body tissues and fluids as well as in other organisms. Methylated xanthines (methylxanthines), which include caffeine, paraxanthine, theobromine, and theophylline, commonly used for their effects as mild stiµlants and as bronchodilators, notably in the treatment of asthma symptoms. This application shows the efficient separation of several common xanthines and may be applied their analysis in any number of desired matrices.

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