You're not too close to a match there... The name must start out something like:
IG1-this-that-
IG99-this-that-
The IG is required, then one or two digits, then a dash, then anything followed by a dash and anything followed by a dash. Next you need a long string of digits, a dash, and shorter string of digits and a dash. Next you get a choice: two digits or two digits, a dash, and two more digits. A final -sr is required.