PHR2000

Caffeine Impurity F

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): 1,7-Dimethylxanthine, 1,7-DIMETHYL-3,7-DIHYDRO- 1H-PURINE-2,6-DIONE, 1,7-Dimethyl-1H-purine-2,6-dione, 1,7-Dimethyl-3,7-dihydro-1H-purine-2,6-dione, 2,6-Dihydroxy-1,7-dimethylpurine, NSC 400018, Paraxanthine
• Empirical Formula (Hill Notation): C₇H₈N₄O₂
• CAS Number: 611-59-6
• Molecular Weight: 180.16
• NACRES: NA.24
• UNSPSC Code: 12352210
• Beilstein/REAXYS Number: 197907
• MDL number: MFCD00005727

Properties

• Quality Level: 300
• grade: certified reference material, pharmaceutical secondary standard
• API family: caffeine
• form: solid
• CofA: current certificate can be downloaded
• packaging: pkg of 50 mg
• mp: 294-296 °C (lit.)
• application(s): pharmaceutical (small molecule)
• storage temp.: 2-30°C
• SMILES string: CN1C(=O)Nc2ncn(C)c2C1=O
• InChI: 1S/C7H8N4O2/c1-10-3-8-5-4(10)6(12)11(2)7(13)9-5/h3H,1-2H3,(H,9,13)
• InChI key: QUNWUDVFRNGTCO-UHFFFAOYSA-N

Description

General description

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

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.

Analysis Note

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

Other Notes

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.

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.

To see an example of a Certificate of Analysis for this material enter LRAB4748 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302
• pcodes: P301 + P312 + P330
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable