o-Phenylenediamine
ALDRICH/694975 - sublimed, ≥99%
Synonym: 1,2-Diaminobenzene; 1,2-Phenylenediamine; OPD
CAS Number: 95-54-5
Empirical Formula (Hill Notation): C6H8N2
Molecular Weight: 108.14
EC Number: 202-430-6
MDL Number: MFCD00007721
Linear Formula: C6H8N2
Product Type: Chemical
o-Phenylenediamine (OPD) is a chromogenic substrate suitable for use in ELISA procedures which utilize horseradish peroxidase conjugates. This substrate produces a soluble end product that is orange-brown in color and can be read spectrophotometrically at 450 nm. The OPD reaction may be stopped with 3N HCl or 3 M H2SO4, and read at 492 nm.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 694975-1G
| assay | ≥99% |
| bp | 256-258 °C |
| form | sublimed |
| InChI | 1S/C6H8N2/c7-5-3-1-2-4-6( |
| InChI key | GEYOCULIXLDCMW-UHFFFAOYSA |
| mp | 100-102 °C |
| Quality Level | 100  |
| SMILES string | Nc1ccccc1N |
| vapor density | 3.7 (vs air) |
| vapor pressure | 0.01 mmHg ( 25 °C) |
| Application: | o-Phenylenediamine can be used in the synthesis of: • Various benzimidazole derivatives that are structural units of several bioactive drug substances and pigments. • N-doped colloidal graphene quantum dots (QDs), which can electrochemically catalyze the oxygen reduction reactions. • N-doped graphene nanoplatelets from simple solution edge-functionalization for n-type field-effect transistors. • N-heteroacenes (azaacenes) that are good candidates as active materials for organic thin film transistors. |
| Packaging: | 1 g in glass bottle |
| Symbol |    GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H301 - H312 + H332 - H317 - H319 - H341 - H351 - H410 |
| Precautionary statements | P273 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 |
| Hazard Codes | T,N |
| Risk Statements | 20/21-25-36-40-43-50/53-68 |
| Safety Statements | 28-36/37-45-60-61 |
| RIDADR | UN 1673 6.1 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 276.8 °F - closed cup |
| Flash Point(C) | 136 °C - closed cup |
| Purity | ≥99% |
| bp | 256-258 °C |
| mp | 100-102 °C |
| UNSPSC | 12352100 |