1,2-Propanediol
SIAL/16033 - meets analytical specification of Ph. Eur., BP, USP, ≥99.5%
Synonym: 1,2-PDO; Propylene glycol
CAS Number: 57-55-6
Empirical Formula (Hill Notation): C3H8O2
Molecular Weight: 76.09
EC Number: 200-338-0
MDL Number: MFCD00064272
Linear Formula: CH3CH(OH)CH2OH
Product Type: Chemical
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | ≥99.5% |
| autoignition temp. | 779 °F |
| bp | 187 °C (lit.) |
| density | 1.036 g/mL at 25 °C (lit.) |
| expl. lim. | 12.5 % |
| form | liquid |
| functional group | hydroxyl |
| ign. residue | ≤0.005% (as SO4) |
| impurities | acidic reac. impurities, complies |
| organic volatile impurities, complies (GC) | |
| oxidizing substances, complies | |
| reducing matter, complies | |
| residual solvents, complies | |
| ≤0.0005% heavy metals (as Pb) | |
| ≤0.002% free alkali (as NaOH) | |
| ≤0.003% free acid (as CH3COOH) | |
| ≤0.2% water (Karl Fischer) | |
| InChI | 1S/C3H8O2/c1-3(5)2-4/h3-5 |
| InChI key | DNIAPMSPPWPWGF-UHFFFAOYSA |
| mp | −60 °C (lit.) |
| quality | meets analytical specification of Ph. Eur., BP, USP |
| Quality Level | 200  |
| refractive index | n |
| n |
|
| shelf life | 24 mo. |
| SMILES string | CC(O)CO |
| suitability | complies for appearance of solution |
| vapor density | 2.62 (vs air) |
| vapor pressure | 0.08 mmHg ( 20 °C) |
| Application: | 1,2-Propanediol may be employed as a cryoprotective agent for the preservation (by cooling to sub-zero temperatures) of human embryos and and oocytes (human and mouse). |
| General description: | 1,2-Propanediol is an 1,2-alkanediol. It can be obtained from glycerol, via hydrogenolysis in the presence of Ru/C and Amberlyst ion-exchange resins. |
| General description: | 1,2-Propanediol is an important petrochemical that can be prepared by the hydrogenolysis of glycerol. It is mainly used as a cryoprotectant for biological samples and also as an additive in food, cosmetic and pharmaceutical industries. |
| Other Notes: | The article number 16033-4X5L will be discontinued. Please order the single bottle 16033-5L which is physically identical with the same exact specifications. The article number 16033-6X1L will be discontinued. Please order the single bottle 16033-1L which is physically identical with the same exact specifications. The article number 16303-4X2.5L-R will be discontinued. Please order the single bottle 16303-2.5L-R which is physically identical with the same exact specifications. |
| Packaging: | bottled under inert gas |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 219.2 °F - closed cup |
| Flash Point(C) | 104 °C - closed cup |
| Purity | ≥99.5% |
| bp | 187 °C (lit.) |
| mp | −60 °C (lit.) |
| Density | 1.036 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |