5J18BP595G 7789-09-5 Ammonium bichromate Ammonium dichromate Ammonium dichromate(VI) Dichromic acid, diammonium salt Chromic acid (H2Cr2O7), ammonium salt (1:2) Chromic acid (H2Cr2O7), diammonium salt Ammonio (bicromato di) [Italian] Ammonio (dicromato di) [Italian] Ammonium chromate ((NH4)2Cr2O7) Ammonium (dichromate d') [French] Ammonium dichromate (VI) Ammoniumbichromaat [Dutch] Ammoniumdichromaat [Dutch] Ammoniumdichromat [German] Bichromate d'ammonium [French] Diammonium dichromate Dichromic acid (H2Cr2O7), diammonium salt EINECS 232-143-1 HSDB 481 Ammonio (bicromato di) Ammonio (dicromato di) Ammonium (dichromate d') Ammoniumbichromaat Ammoniumdichromaat Ammoniumdichromat Bichromate d'ammonium UNII-5J18BP595G EC 232-143-1 Ammonium dichromate [Chromium and chromium compounds] Ammonium dichromate [UN1439] [Oxidizer] Chromic acid, diammonium salt UN1439 CAS 7789-09-5
| CAS No. | 7789-09-5 |
| Molecular Formula | H2Cr2O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula H2Cr2O7H3N, 5J18BP595G 7789-09-5 Ammonium bichromate Ammonium dichromate Ammonium dichromate(VI) Dichromic acid, diammonium salt Chromic acid (H2Cr2O7), ammonium salt (1:2) Chromic acid (H2Cr2O7), diammonium salt Ammonio (bicromato di) [Italian] Ammonio (dicromato di) [Italian] Ammonium chromate ((NH4)2Cr2O7) Ammonium (dichromate d') [French] Ammonium dichromate (VI) Ammoniumbichromaat [Dutch] Ammoniumdichromaat [Dutch] Ammoniumdichromat [German] Bichromate d'ammonium [French] Diammonium dichromate Dichromic acid (H2Cr2O7), diammonium salt EINECS 232-143-1 HSDB 481 Ammonio (bicromato di) Ammonio (dicromato di) Ammonium (dichromate d') Ammoniumbichromaat Ammoniumdichromaat Ammoniumdichromat Bichromate d'ammonium UNII-5J18BP595G EC 232-143-1 Ammonium dichromate [Chromium and chromium compounds] Ammonium dichromate [UN1439] [Oxidizer] Chromic acid, diammonium salt UN1439 contains an inorganic composition; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 235.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 5J18BP595G 7789-09-5 Ammonium bichromate Ammonium dichromate Ammonium dichromate(VI) Dichromic acid, diammonium salt Chromic acid (H2Cr2O7), ammonium salt (1:2) Chromic acid (H2Cr2O7), diammonium salt Ammonio (bicromato di) [Italian] Ammonio (dicromato di) [Italian] Ammonium chromate ((NH4)2Cr2O7) Ammonium (dichromate d') [French] Ammonium dichromate (VI) Ammoniumbichromaat [Dutch] Ammoniumdichromaat [Dutch] Ammoniumdichromat [German] Bichromate d'ammonium [French] Diammonium dichromate Dichromic acid (H2Cr2O7), diammonium salt EINECS 232-143-1 HSDB 481 Ammonio (bicromato di) Ammonio (dicromato di) Ammonium (dichromate d') Ammoniumbichromaat Ammoniumdichromaat Ammoniumdichromat Bichromate d'ammonium UNII-5J18BP595G EC 232-143-1 Ammonium dichromate [Chromium and chromium compounds] Ammonium dichromate [UN1439] [Oxidizer] Chromic acid, diammonium salt UN1439 (CAS 7789-09-5), a certified reference material (molecular formula H2Cr2O7H3N, MW 235.03 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | H2Cr2O7 2*H3N |
| Molecular Weight | 235.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
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