2,2′-Azobis(2-methylpropionamidine) dihydrochloride
ALDRICH/440914 - powder or granules, 97%
Synonym: α,α′-Azodiisobutyramidine dihydrochloride; AAPH
CAS Number: 2997-92-4
Empirical Formula (Hill Notation): C8H18N6 · 2HCl
Molecular Weight: 271.19
EC Number: 221-070-0
MDL Number: MFCD00142725
Linear Formula: [=NC(CH3)2C(=NH)NH2]2·2HCl
Product Type: Chemical
| assay | 97% |
| form | powder or granules |
| InChI | 1S/C8H18N6.2ClH/c1-7(2,5( |
| InChI key | LXEKPEMOWBOYRF-QDBORUFSSA |
| mp | 175-177 °C (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | Cl.Cl.CC(C)(N=NC(C)(C)C |
| solubility | acetone, dioxane, methanol, ethanol, DMSO and water: soluble |
| t1/2 | 10 hr(56 °C) |
| Application: | Free radical initiator. Polymerization initiator for acrylic, vinyl and allyl monomers. |
| Features and Benefits: | Undergoes first order decomposition to a cationic radical. Decomposes on exposure to UV. Compatible with cationic surfactants. Decomposition rate is pH dependent |
| Packaging: | 25, 100 g in poly bottle |
| Symbol | ![]() ![]() GHS02,GHS07,GHS09 |
| Signal word | Danger |
| Hazard statements | H251 - H302 - H317 - H319 - H410 |
| Precautionary statements | P235 - P273 - P280 - P301 + P312 + P330 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xn |
| Risk Statements | 5-22-43 |
| Safety Statements | 24-37 |
| RIDADR | UN3226 - class 4.1 - Self-reactive solid type D (2,2'-AZOBIS(2-A |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 97% |
| mp | 175-177 °C (lit.) |
| UNSPSC | 12162002 |




