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Inventory
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Inventory

6. Inventory

Inventory consists of the following (in thousands):

 

 

 

September 30, 2020

 

 

December 31, 2019

 

Raw materials

 

$

19,215

 

 

$

6,635

 

Work in process

 

 

12,098

 

 

 

12,571

 

Finished goods

 

 

11,436

 

 

 

5,762

 

Total inventory

 

$

42,749

 

 

$

24,968

 

 

As of September 30, 2020, total inventory included $39.7 million related to CINVANTI and $3.0 million related to SUSTOL. As of December 31, 2019, total inventory included $23.5 million related to CINVANTI and $1.5 million related to SUSTOL. In addition, cost of product sales for the three and nine months ended September 30, 2019 included charges of $1.7 million and $3.3 million, respectively, resulting from the write-off of short-dated SUSTOL inventory.