Di-p-toluoyl-L-tartaric acid , ≥99.0% , 32634-66-5

Synonym(s):
L-(-)-DTTA;Di-p-toluyl-L-tartaric acid

CAS NO.：32634-66-5

Empirical Formula: C20H18O8

Molecular Weight: 386.35

MDL number: MFCD00064440

EINECS: 251-131-7

PRODUCT Properties

• Melting point: 169-171 °C(lit.)
• alpha: -142 º (c=10, EtOH)
• Boiling point: 432.57°C (rough estimate)
• Density: 1.3084 (rough estimate)
• refractive index: -139 ° (C=1, EtOH)
• storage temp.: Store below +30°C.
• solubility: Chloroform (Slightly), Ethanol (Slightly), Methanol (Slightly)
• pka: 1.46±0.25(Predicted)
• form: Crystalline Powder
• color: White to yellow
• optical activity: [α]20/D 138°, c = 1 in ethanol
• Water Solubility: soluble
• BRN: 2022481
• CAS DataBase Reference: 32634-66-5(CAS DataBase Reference)
• EPA Substance Registry System: Butanedioic acid, 2,3-bis[(4-methylbenzoyl)oxy]-, [R-(R*,R*)]- (32634-66-5)

Description and Uses

(-)-O,O’-Di-p-toluoyl-L-tartaric Acid is a useful reagent for the preparation of the upadacitinib salt compound.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319
• Precautionary statements: P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 22-24/25-36/37-26
• WGK Germany: 3
• TSCA: T
• HS Code: 29181300