7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole-3,7-diamine CAS 13728-18-2
| CAS No. | 13728-18-2 |
| Molecular Formula | C3H5N7 |
| Molecular Weight | 139.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole-3,7-diamine.
CATO supplies 7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole-3,7-diamine (CAS 13728-18-2), a certified reference material (molecular formula C3H5N7, MW 139.12 g/mol) for analytical method development and quality control.
7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole-3,7-diamine (C3H5N7) contains a nitrile group. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C3H5N7 |
| Molecular Weight | 139.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 7 |
Related H Standards
- 5H-[1,2,4]Triazolo[4,3-b][1,2,4]triazole-3,6-diamine (CAS 400063-96-9)
- [1,2,4]Triazolo[3,4-f][1,2,4]triazin-8-ol (CAS 1427501-61-8)
- [1,2,4]triazolo[4,3-a][1,3,5]triazin-5-ol (CAS 1427501-70-9)
- [1,2,4]Triazolo[1,5-a][1,3,5]triazin-7(6H)-one (CAS 1489-03-8)
- [1,2,4]Triazolo[1,5-b][1,2,4]triazin-7(3H)-one (CAS 85276-92-2)
- [1,2,4]Triazolo[5,1-c][1,2,4]triazin-4(1H)-one (CAS 57351-74-3)
- [1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-amine (CAS 3176-50-9)
- 6H-[1,2,3]Triazolo[4,5-d]pyrimidin-5-amine (CAS 10179-84-7)
Recommended Standards
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- 2-Bromo-4-chloro-5-iodopyridine (CAS 1364663-37-5)
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- 1779136-14-9 3-(3-(Trifluoromethyl)pyridin-2-yl)thiazolidine (CAS 1779136-14-9)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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