BSO-40 is the standard fill fluid for food and pharmaceutical applications. It has FDA approvals 21CFR 172.856 as direct and 21CFR 174.5 as indirect food additive. Its CAS registration number is 68583-51-7. It is a derivate of coconut oil and propylene glycol. This fluid is approved for food or pharmaceutical applications. FDA approvals 21CFR 172.856 and 21CFR 174.5. CAS registration number is 68583-51