Di-p-toluoyl-L-tartaric acid monohydrate

1. Abbreviation: L-(-)-DTTA·H2O Product name: Di-p-toluoyl-L-tartaric acid monohydrate

2. CAS NO: 71607-31-3

3. Molecular Formula: C₂₀H₂₀O₉

4. Molecular Weight: 404.33

5. Structural formula: 

6. Properties: This product is a white or off-white powder, soluble in ethanol and methanol, not easily soluble in water.

7. Uses: Widely used in chiral resolution of amines, such as synthesis of dopamine agonists (-)-quinpirole.

8. Product quality standards:

Item	Index
Content	≥99%
Specific rotation	[α]=-140～-143(c=1,MeOH)
Melting point(dry basis)	168～171℃