CERTIFICATE OF ANALYSIS
Quinoxaline-2-carboxylic acid-D4 (QCA-D4)
Product Name: Quinoxaline-2-carboxylic acid-D4(QCA-D4)
Catalog Number: 72728
Labeled CAS Number： 2244217-89-6
Unlabeled CAS Number: 879-65-2
Appearance： Pale Beige to Beige Solid
Lot Number： 1431912
Date of Analysis： Dec-30th-2019
Certificate Expiration: 36 months from Date of Receipt (proper storage and handling required).
Long-Term Storage: The compound should be stored at refrigerator, under inert atmosphere.
| Analysis Method | Product Specification | Product Result |
| Chemical Purity by HPLC/UV | ≥98% | 99.49% |
| Identity by 1H NMR | Conforms to Structure | Pass |
| Identity by 13C NMR | Conforms to Structure | Pass |
| Identity by Mass Spectrometry | Conforms to Structure | Pass |
| Isotope Incorporation by Mass Spectrometry | ≥98% D/Molecule | 99.83%D/Molecule |
| Intended Use |
| This material is intended only for laboratory use in analytical and R+D applications. It not suitable for human/animal consumption or for household use. |
| Hazards |
| Read Material Safety Data Sheet (MSDS) and understand any potential hazard(s) prior to the use of this product. All chemicals should be considered potentially hazardous in nature and should only be handled by qualified personnel using established good laboratory practices. |
______________________ Dec-30th-2019
Date
