Isobutyric acid
SIAL/96499 - certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Synonym: 2-Methylpropionic acid
CAS Number: 79-31-2
Empirical Formula (Hill Notation): C4H8O2
Molecular Weight: 88.11
EC Number: 201-195-7
MDL Number: MFCD00002658
Linear Formula: (CH3)2CHCO2H
Product Type: Chemical
| application(s) | cleaning products cosmetics food and beverages personal care |
| autoignition temp. | 824 °F |
| bp | 153-154 °C (lit.) |
| density | 0.95 g/mL at 25 °C (lit.) |
| expl. lim. | 10 % |
| format | neat |
| grade | TraceCERT® |
| certified reference material | |
| InChI | 1S/C4H8O2/c1-3(2)4(5)6/h3 |
| InChI key | KQNPFQTWMSNSAP-UHFFFAOYSA |
| manufacturer/tradename | Manufactured by: Sigma-Aldrich Production GmbH, Switzerland |
| mp | −47 °C (lit.) |
| Quality Level | 300  |
| refractive index | n |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | CC(C)C(O)=O |
| storage condition | under inert gas |
| storage temp. | −20°C |
| technique(s) | gas chromatography (GC): suitable |
| vapor density | 3.04 (vs air) |
| vapor pressure | 1.5 mmHg ( 20 °C) |
| General description: | This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ. Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate. Download your certificate at: http://www.sigma-aldrich. |
| Legal Information: | TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Recommended products: | Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial . |
| Symbol |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H226 - H302 - H311 - H314 |
| Precautionary statements | P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
| RIDADR | UN 2529 8(3) / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | 131.0 °F - closed cup |
| Flash Point(C) | 55 °C - closed cup |
| bp | 153-154 °C (lit.) |
| mp | −47 °C (lit.) |
| Density | 0.95 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | −20°C |
| UNSPSC | 12352106 |