ISTD/Surrogate Standard Back Catalog number: 92572 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676953 Heptafluorobutyric acid, 100mg Price on request 96142 Anthracene Price on request 677398 D5-Atrazine-desisopropyl, 100 µg/ml, Acetone, 1m Price on request