(2S)-(+)-2,5-Dihydro-3,6-Dimethoxy-2-Isopropylpyrazine CAS#78342-42-4 Product Description
(S)-2,5-Dihydro-3,6-dimethoxy-2-isopropylpyrazine, commonly known as the Schöllkopf reagent, is a chiral nitrogen-containing organic compound with the molecular formula C₉H₁₆N₂O₂, a molecular weight of 184.24 g/mol, and the CAS Registry Number 78342-42-4. It typically appears as a pale yellow to green liquid and is characterized by a density of approximately 1.1 g/cm³, a boiling point of 245.2°C, and a flash point of 85.6°C.
For appropriate storage and preservation, the compound should be maintained in a tightly sealed container under cool, dry conditions at room temperature, following the recommended handling and storage precautions to maintain its quality and stability.
The Schöllkopf reagent is primarily utilized in scientific research and organic synthesis, particularly in studies involving the preparation of chiral organic compounds. Its synthesis commonly involves L-valine as a key starting material, providing the chiral framework of the molecule. Owing to its distinctive molecular structure and stereochemical characteristics, it serves as a useful reagent in asymmetric synthesis and the development of optically active compounds.

(2S)-(+)-2,5-Dihydro-3,6-Dimethoxy-2-Isopropylpyrazine CAS#78342-42-4 Chemical Properties
| Alpha | 102 º (c=1%, EtOH) |
| Boiling point | 245.2±33.0 °C(Predicted) |
| Density | 1.028 g/mL at 20 °C (lit.) |
| Storage temp | Sealed in dry,2-8°C |
| Solubility | Chloroform (Slightly), DMSO (Slightly), Ethanol (Sparingly), Methanol (Slightly) |
| Pka | 3.81±0.60(Predicted) |
| Form | Liquid |
| Color | Clear colorless to pale yellow |
| Optical activity | [α]20/D +102.0±5°, c = 1% in ethanol |
| BRN | 3650245 |
| InChIKey | FCFWEOGTZZPCTO-QMMMGPOBSA-N |
| CAS DataBase Reference | 78342-42-4(CAS DataBase Reference) |
(2S)-(+)-2,5-Dihydro-3,6-Dimethoxy-2-Isopropylpyrazine CAS#78342-42-4 Safety Information
| Hazard Codes | Xn |
| Risk Statements | 22-36/37/38 |
| Safety Statements | 23-24/25-37/39-26 |
| WGK Germany | 3 |
| HS Code | 29335995 |
(2S)-(+)-2,5-Dihydro-3,6-Dimethoxy-2-Isopropylpyrazine CAS#78342-42-4 Product Application
This product is strictly intended for scientific research and laboratory applications only. It is not intended or approved for pharmaceutical use, medical treatment, household medicinal applications, or any other purposes outside the scope of scientific research. It must be handled and utilized exclusively in accordance with applicable laboratory safety guidelines and research protocols.
