CDRH5D18-680NC CDRH5D18-6R2 CDRH5D18-6R2N CDRH5D18-6R2NC CDRH5D18-6R8NC CDRH5D18-820N CDRH5D18-820NC-T CDRH5D18-8R9N CDRH5D18-8R9NC CDRH5D18BHPNP-0R6MB