Stable isotope labelled internal standards
Labelled analogues used as internal standards in quantitative mass spectrometry. The labelling pattern and the isotopic enrichment are recorded on the batch certificate together with the chemical purity, because together they determine how closely the internal standard tracks the analyte.
78 items in this group. Every one has its own page with the CAS number, molecular data, available pack sizes and the documentation on file; the batch certificate of analysis states the value assigned to the lot you receive.
| Product | CAS | Cat. no. | Status |
|---|---|---|---|
| N-Nitrosodimethylamine-d6 | 17829-05-9 | CCHM701585 | In stock |
| Diethylene Glycol-d8 | 102867-56-1 | C1025211 | In stock |
| Chloramphenicol-d5 | 202480-68-0 | CCAD300661 | In stock |
| Amoxicillin-D4 | 2673270-36-3 | CCAD300810 | On synthesis |
| N-Nitrosodiethylamine-d10 | 1219794-54-3 | CCHM701644 | In stock |
| Salbutamol-d3 | 1219798-60-3 | CCAD300707 | In stock |
| Florfenicol-d3 | 2213400-85-0 | CCAD300799 | On synthesis |
| Progesterone-d9 | 15775-74-3 | C4X-15021 | In stock |
| Acrylamide-13C3 | 287399-26-2 | CCHM701614 | On synthesis |
| Vitamin D3-[d3] | 80666-48-4 | CCFD201922 | On synthesis |
| 1-Amino Hydantoin-13C3 | 957509-31-8 | CCAD300655 | In stock |
| Testosterone-16,16,17-D3 | 77546-39-5 | CCAD301121 | In stock |
| Semaglutide-d8 Tetratrifluoroacetate | — | C4X-222617 | In stock |
| Semicarbazide-13C,15N2 Hydrochloride | 1173020-16-0 | CCAD300656 | In stock |
| Vitamin D4 | 511-28-4 | CCFD200494 | In stock |
| Ractopamine-d6 Hydrochloride | 1276197-17-1 | CCHM701147 | In stock |
| Vitamin D2-d3 | 1217448-46-8 | CCFD201948 | In stock |
| 1,3-Distearoyl-2-Chloropropanediol-d5 | 1329796-49-7 | CCFD200581 | In stock |
| Metronidazole-d3 | 83413-09-6 | CCAD302444 | In stock |
| Perfluorooctanoic acid-13C4 | 960315-48-4 | LCET400137-ME | On synthesis |
| Rosuvastatin-d6 Sodium Salt | 2070009-41-3 | C4X-116953 | In stock |
| ent-Thiamphenicol-d3 | 1217723-41-5 | CCAD301165 | In stock |
| Ciprofloxacin-d8 | 1130050-35-9 | CCAD300659 | In stock |
| Sodium Cyclamate-D4 | 1627119-76-9 | CCFD202107 | In stock |
| Tributyltin Chloride-D27 | 1257647-76-9 | CWLT600696 | On synthesis |
| rac 1,2-Bis-palmitoyl-3-chloropropanediol-D5 | 1185057-55-9 | CCHM701587 | In stock |
| (R,S)-Anatabine-2,4,5,6-d4 | 1020719-11-2 | CCPD103583 | On synthesis |
| 2,4,5,6-Tetrachlorophenol-13C6 | 1246820-81-4 | CCEM501626 | In stock |
| Dexamethasone-d5 | 358731-91-6 | CCAD300748 | In stock |
| Levomefolic Acid-13C,d3 | 1356019-94-7 | C4X-139537 | In stock |
| Nitrosobis(2-Hydroxyethyl)Amine-D8 | 1173019-53-8 | CCHM700981 | In stock |
| Pentachlorophenol-13C6 | 85380-74-1 | CCHM701295 | In stock |
| Azithromycin-d5 (major) | — | CCAD301941 | In stock |
| Benzo[a]Pyrene-d12 | 63466-71-7 | CPAH111526 | In stock |
| Carbamazepine-d10 | 132183-78-9 | CCAD301912 | In stock |
| Dotinurad-d4 | 2626886-23-3 | C4X-2494135 | In stock |
| Glyphosate-13C2,15N | 1185107-63-4 | CCPD101631 | In stock |
| Metformin-d6 Hydrochloride | 1185166-01-1 | C4X-122024 | In stock |
| rac Biotin-d4 | 1217850-77-5 | CCFD201211 | In stock |
| 4-(3＇,6＇-Dimethyl-3＇-Heptyl)phenol-13C6 | 1173020-38-6 | CCHM702335 | In stock |
| Ethyl Maltol-d5 | — | CCFD201836 | In stock |
| Everolimus EP Impurity A-d3 | 392711-19-2 | C4X-17463 | In stock |
| Hydrocortisone-d4 | 73565-87-4 | C4X-140122 | In stock |
| N-Nitroso-Di-n-Butylamine-d18 | 1219798-82-9 | CCEM500924 | On synthesis |
| Nicotinamide-2,4,5,6-d4 | 347841-88-7 | CCFD200902 | In stock |
| 13C6-Cereulide | 1487375-69-8 | LCFD202477 | On synthesis |
| 2,2,2-Trichloro-acetic Acid-13C2 | 165399-56-4 | CCHM701895 | In stock |
| 2-Methyl-3-Isothiazolone-d3 Hydrochloride | 1329509-49-0 | CCAD301758 | On synthesis |
| 6PPD-quinone-D5 | 2750119-14-1 | CCHM704496 | On synthesis |
| Acyclovir-d4 | 1185179-33-2 | CCAD300672 | In stock |
| Atorvastatin-d5 Calcium Salt | 222412-82-0 | C4X-113288 | In stock |
| Dapagliflozin-D5 | 1204219-80-6 | C4X-113844 | In stock |
| Doxycycline-d3 | 2747918-45-0 | C1931587 | On synthesis |
| Ertugliflozin-d5 | 1298086-22-2 | C4X-301123 | In stock |
| Ezetimibe-d4 | 1093659-90-5 | CCAD302438 | In stock |
| Finerenone-d5 | — | C4X-288046 | In stock |
| Melatonin-d4 | 66521-38-8 | CCAD301445 | In stock |
| Ronidazole-d3 | 1015855-87-4 | CCAD301156 | In stock |
| Vitamin K1-d7 | 1233937-39-7 | CCFD200493 | In stock |
| ortho-Hydroxy Atorvastatin-d5 Calcium Salt | 265989-47-7 | C4X-113289 | In stock |
| 2,3-Dichloro-1-propanol-d5 | 1189730-34-4 | CCPD101697 | In stock |
| 5-Chloro-2-Methyl-3-Isothiazolone-d3 | 1329611-34-8 | CCAD301759 | In stock |
| Azithromycin-d3 | 163921-65-1 | C4X-100321 | In stock |
| Beclomethasone Dipropionate-d10 | — | CCAD301383 | On synthesis |
| Beclomethasone Dipropionate-d6 | — | C4X-147424 | In stock |
| Bempedoic Acid-d4 | 2408131-70-2 | CCAD303127 | On synthesis |
| Benzoisothiazol-3-one-13C6 | 1329616-16-1 | CCAD301760 | In stock |
| Bisphenol F-d10 | 1794786-93-8 | CCHM701219 | In stock |
| Budesonide-d8 (Mixture of Diastereomers) | 1105542-94-6 | C4X-138925 | On synthesis |
| Ciprofloxacin-D8 Hydrochloride | 1216659-54-9 | CCAD300688 | In stock |
| Gibberellin Acid (GA3)-d2 | 120396-36-3 | CCAD303040 | On synthesis |
| L-Tryptophan-d5 | 62595-11-3 | CCFD201014 | On synthesis |
| PCB 209-13C12 | 105600-27-9 | CCEM500940 | On synthesis |
| Pantothenic Acid-13C3,15N Hemicalcium Salt | 356786-94-2 | CCFD200638 | On synthesis |
| Previtamin D2 (~90%) | 21307-05-1 | C4X-19141 | On synthesis |
| Pyridoxal-d3 Hydrochloride | 1173023-49-8 | C4X-187730 | In stock |
| Sacubitril-d4 | 1884269-07-1 | C4X-169671 | In stock |
| Terbutaline-d9 | 1189658-09-0 | CCAD300603 | On synthesis |
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Other groups: Antibiotic impurity standards · Impurity and metabolite reference standards · Mycotoxin reference standards · Nitrosamine and nitrosamine-impurity standards · PFAS reference standards · Pesticide and veterinary drug reference standards · Pharmacopoeial impurity standards · Solution and multi-component standards · Vitamin reference standards