import re
s = "13371337:Bat,TH,Li-Met,Blub,9.5V,370mAHr,1/2_AA-Cell,50pcs,13351234:Radio - Antenna 2.4 GHz AB/C midi (10p),15642345:Board SMB - Some Magic Board,95653345:Board SMK 6 - Some Magic Knobs - Mod6,56735632:Control Unit Z65 - Mod9"
pattern = r"\b[0-9]{5,9}:.*?(?=,\b[0-9]{5,9}:|$)"
result = re.findall(pattern, s)
print(result)
aW1wb3J0IHJlCgpzID0gIjEzMzcxMzM3OkJhdCxUSCxMaS1NZXQsQmx1Yiw5LjVWLDM3MG1BSHIsMS8yX0FBLUNlbGwsNTBwY3MsMTMzNTEyMzQ6UmFkaW8gLSBBbnRlbm5hIDIuNCBHSHogQUIvQyBtaWRpICgxMHApLDE1NjQyMzQ1OkJvYXJkIFNNQiAtIFNvbWUgTWFnaWMgQm9hcmQsOTU2NTMzNDU6Qm9hcmQgU01LIDYgLSBTb21lIE1hZ2ljIEtub2JzIC0gTW9kNiw1NjczNTYzMjpDb250cm9sIFVuaXQgWjY1IC0gTW9kOSIKcGF0dGVybiA9IHIiXGJbMC05XXs1LDl9Oi4qPyg/PSxcYlswLTldezUsOX06fCQpIgpyZXN1bHQgPSByZS5maW5kYWxsKHBhdHRlcm4sIHMpCnByaW50KHJlc3VsdCk=
['13371337:Bat,TH,Li-Met,Blub,9.5V,370mAHr,1/2_AA-Cell,50pcs', '13351234:Radio - Antenna 2.4 GHz AB/C midi (10p)', '15642345:Board SMB - Some Magic Board', '95653345:Board SMK 6 - Some Magic Knobs - Mod6', '56735632:Control Unit Z65 - Mod9']