2H-Benzo[d][1,2,3]triazole CAS 273-02-9
| CAS No. | 273-02-9 |
| Molecular Formula | C6H5N3 |
| Molecular Weight | 119.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 119.12 g/mol gives 2H-Benzo[d][1,2,3]triazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2H-Benzo[d][1,2,3]triazole (CAS 273-02-9), molecular formula C6H5N3 and molecular weight 119.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, an aromatic ring system, 2H-Benzo[d][1,2,3]triazole is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 119.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2H-Benzo[d][1,2,3]triazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5N3 |
| Molecular Weight | 119.12 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related H Standards
- Benzo[c]isoxazole (CAS 271-58-9)
- 2H-Benzo[d]imidazole (CAS 272-94-6)
- Benzo(B)Furan (CAS 271-89-6)
- Benzo-<SUP>13</SUP>C<SUB>6</SUB>-oxazole (CAS 1216500-18-3)
- 4H-Benzo[d][1,3]oxazine (CAS 253-93-0)
- Benzo[d]oxazol-7-amine (CAS 136992-95-5)
- 1H-Benzo[d]imidazol-5(4H)-one (CAS 148832-39-7)
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Recommended Standards
- 2-Amino-6-cyanopyridine (CAS 370556-44-8)
- 2H-Pyrazolo[3,4-b]pyridine (CAS 271-71-6)
- 2-Amino-5-ethynylpyrazine (CAS 457099-42-2)
- 2H-Pyrazolo[4,3-b]pyridine (CAS 272-51-5)
- 1-[3-(bromomethyl)-1-bicyclo[1.1.1]pentanyl]ethanone (CAS 2306268-76-6)
- 2-(3-Chlorophenyl)-7-(4-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile (CAS 860610-99-7)
- 4,4',4''-[(2,4,6-Trimethylbenzene-1,3,5-triyl)tris(methylene)]tribenzaldehyde (CAS 877775-87-6)
- 1-[1-(4-Ethylphenyl)-1H-1,2,3-triazole-4-carbonyl]piperidin-4-amine (CAS 1351779-88-8)
- 2,7-Dimethyl-2,6-dihydroimidazo[4',5':3,4]benzo[1,2-d][1,2,3]triazole (CAS 32622-35-8)
- 3,5,6-Trichloro-N,N-dimethylpyrazin-2-amine (CAS 40263-67-0)
- Bicalutamide Impurity 36 (CAS CATO-C4X-101336)
- 4-Bromo-N-(3-methoxyphenyl)benzamide (CAS 313268-57-4)
- 2243-76-7 OBF2VZO457 Alizarine Yellow R 5-(p-Nitrophenylazo)salicylic acid Salicylic acid, 5-((p-nitrophenyl)azo)- Benzoic acid, 2-hydroxy-5-(2-(4-nitrophenyl)diazenyl)- Benzoic acid, 2-hydroxy-5-((4-nitrophenyl)azo)- C.I. 14030 C.I. Mordant Orange 1 Acid Alizarin Yellow R Alizarine Chrome Orange G Alizarine Orange R Alizarine Orange 2GN Alizarine Orange RD Alizarine Yellow P Alizarine Yellow R (indicator) Alizarine Yellow R-CF Alizarine Yellow RW Alizarol Orange R Alphacroic Orange R Anthranol Chrome Yellow R Azochromal Orange R Brasilian Chrome Orange R Calcochrome Orange R Chromacid Orange S Chrome Fast Orange RW Chrome Orange N Chrome Orange R Chrome Orange MR Chrome Orange RLE Chrome Yellow 3RN Chromol Orange R Extra Diamond Chrome Yellow 3R Durochrome Yellow 2RN EINECS 218-818-3 Eniacromo Orange R Eriochrome Orange AOR Fenakrom Orange R Hidachrome Orange R Hispacrom Orange R 2-Hydroxy-5-((4-nitrophenyl)azo)benzoic acid Java Chrome Yellow 3R Java Unichrome Yellow 3R KCA Chrome Orange R Kenachrome Orange Lighthouse Chrome Orange Magracrom Orange Metachrome Orange R Mitsui chrome Orange A Mitsui Chrome Orange AN Monochrome Orange R Monochrome Yellow 3R Orthochrome Orange R para-Nitrobenzeneazosalicylic acid Peerachrome Yellow R Pnbas Pontachrome Yellow 3RN Solochrome Orange M Synchromate Orange AOR Terra Cotta RRN Terracotta 2RN Tertrochrome Yellow 3R Yodochrome Orange A UNII-OBF2VZO457 (CAS 2243-76-7)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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