Copy the Value upto specific range using regular expression extractor in JMeter

Copy the Value upto specific range using regular expression extractor in
JMeter

i want to capture the certain range of values using regular expression
extractor in jmeter. Like "sessionid":
"15F36C8A123D4483935062DDE73280CB\x2D0\x3A1",
In the above value i need to exclude the \x2D0\x3A1 and capture the value.
Can any one please help me. It is urgent.