Pyridinium dichromate
ALDRICH/214698 - 98%
Synonym: PDC
CAS Number: 20039-37-6
Empirical Formula (Hill Notation): C10H10N2 · H2Cr2O7
Molecular Weight: 376.20
EC Number: 243-478-8
MDL Number: MFCD00013105
Linear Formula: C10H10N2 · H2Cr2O7
Product Type: Chemical
| assay | 98% |
| form | solid |
| InChI | 1S/2C5H5N.2Cr.2H2O.5O/c2* |
| InChI key | RCBVKBFIWMOMHF-UHFFFAOYSA |
| mp | 152-153 °C (lit.) |
| Quality Level | 200 ![]() |
| reaction suitability | reagent type: oxidant |
| SMILES string | c1ccncc1.c2ccncc2.O[Cr](= |
| Application: | Oxidizing agent for conversion of primary alcohols to aldehydes and ketones, acetals to esters, and didehydroketones to enones in the presence of tert-butyl hydroperoxide (cat. no. 213128). |
| General description: | Pyridinium dichromate is a pyridinium salt and strong oxidizing agent to convert primary alcohols and secondary alcohols to aldehydes and ketones respectively. |
| Packaging: | 100, 500 g in glass bottle |
| Symbol | ![]() ![]() ![]() ![]() ![]() GHS02,GHS03,GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H228 - H272 - H314 - H317 - H350i - H410 |
| Precautionary statements | P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | O,F,T,N |
| Risk Statements | 49-8-11-34-50/53 |
| Safety Statements | 53-26-36/37/39-45-60-61 |
| RIDADR | UN1479 - class 5.1 - PG 2 - EHS - Oxidizing solid, n.o.s., HI: a |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 98% |
| mp | 152-153 °C (lit.) |
| UNSPSC | 12352005 |







