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Key Documents

PHR1151

Supelco

Theophylline melting point standard

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

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

Empirical Formula (Hill Notation):
C7H8N4O2
CAS Number:
Molecular Weight:
180.16
Beilstein:
13463
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

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grade

certified reference material
pharmaceutical secondary standard

Quality Level

Agency

traceable to USP 1653117

API family

theophylline

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

~Approximately 272 °C

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-30°C

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General description

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.[1][2]
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.

Application

Theophylline may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by spectrophotometry[3][4] and chromatography[5][6] 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.

Biochem/physiol Actions

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

Analysis Note

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

Other Notes

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.

Footnote

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.

Recommended products

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.

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Pictograms

Skull and crossbonesHealth hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Repr. 1B

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Certificates of Analysis (COA)

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Theophylline in asthma
Weinberger M and Hendeles L
The New England Journal of Medicine, 334(21), 1380-1388 (1996)
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)
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)
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)

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