Sorry, I couldn't find pricing data for that day. The closing price for USD in terms of BRL on September 16, 2016 was 3.26. It was down 1.2% for the day. The latest price is 5.50.
DATE
OPEN
HIGH
LOW
CLOSE
September 16 2016
3.30
—
—
3.26
Daily pricing data for USD dates back to 1/1/0001, and may be incomplete.