Tetrabenazine intermediates

6,7-Dimethoxy-3,4-Dihydroiso Quinoline Hydrochloride[CAS:20232-39-7]

5-Methyl-2-Hexanone[CAS:110-12-3]

3-[(Dimethyamino) methyl]-5-methyl-2- hexanone CAS:91342-74-4

Tetrabenazine[CAS:58-46-8] 

Product: 6,7-Dimethoxy-3,4-Dihydroiso Quinoline Hydrochloride[CAS:20232-39-7]        

Batch No: 20130512 

Manufacturing Date: May 2013                  

Retest Date: May 2014

Date of report: 2013-05-13   

Quantity: 200 Kgs

Items                     Specifications                 Results

Appearance:                yellow powder                 Complies 

Water:                      0.5%max.                    0.28%

Identification:                1H NMR & IR                 Complies                

Assay:                       99.0%min.                   99.67%

Total impurity:                 1.0%max.                    0.33%

Single impurity:                0.5%max.                    0.29%

Storage: Airtight,low-temperature storage and protected from light.

Conclusion:It Complies with the Enterprise’s Standard .