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Atorvastatin impurities and related standards

59 reference standards related to Atorvastatin held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 59 of 59; 49 entries carry a structure drawing.

Atorvastatin — related standards
CompoundCAS No.Catalogue No.FormulaMW
Atorvastatin Impurity 31 1105067-89-7 RS-A029005 C14H27NO4 273.37
Atorvastatin Impurity 75 1105067-90-0 RS-A029006 C40H47FN2O5 654.81
Atorvastatin Impurity 76 1105067-91-1 RS-A029007 C40H48N2O5 636.82
Atorvastatin Impurity N 1105067-93-3 RS-A029008 C33H33FN2O4 540.62
Atorvastatin Impurity 56 1116118-82-1 RS-A029010 C50H64FN3O8 854.06
Atorvastatin Impurity M 1146977-93-6 RS-A029011 C35H39FN2O5 586.69
Atorvastatin Impurity 64 125971-93-9 RS-A029012 C11H19NO4 229.27
Atorvastatin Impurity 20 125971-95-1 RS-A029013 C40H47FN2O5 654.81
Atorvastatin Impurity 65 125988-01-4 RS-A029014 C11H17NO4 227.26
Atorvastatin EP Impurity H 125995-03-1 RS-A029015 C33H33FN2O4 540.62
Atorvastatin Impurity 77 125995-13-3 RS-A029016 C14H27NO4 273.37
Atorvastatin Impurity 50 134394-98-2 RS-A029018 C37H41FN2O5 612.73
Atorvastatin Impurity O reference substance 134395-00-9 RS-A029019 C37H43FN2O5 614.75
Atorvastatin Impurity 44 1353049-81-6 RS-A029020 C37H41FN2O5 612.73
Atorvastatin Impurity 84 1403667-07-1 RS-A029024 C14H9Cl2FO 283.13
Atorvastatin Impurity 79 141942-85-0 RS-A029025 C7H11NO3 157.17
Atorvastatin Impurity 58 1428118-12-0 RS-A029026 C37H43FN2O5 614.75
Atorvastatin EP Impurity D 148146-51-4 RS-A029028 C26H22FNO4 431.46
Atorvastatin Impurity 35 1797905-42-0 RS-A029029 C26H24FNO3 417.47
Atorvastatin Impurity 73 1817798-20-1 RS-A029031 C26H24FNO3 417.47
Atorvastatin Impurity 71 186508-95-2 RS-A029033 C14H23NO4 269.34
Atorvastatin Impurity 41 196085-84-4 RS-A029034 C14H23NO4 269.34
Atorvastatin Impurity 42 196085-85-5 RS-A029035 C14H23NO4 269.34
Atorvastatin Impurity 39 2243639-97-4 RS-A029036 C33H35FN2O5 558.64
Atorvastatin Impurity 33 2299304-89-3 RS-A029037 C24H44N2O7 472.62
Atorvastatin Impurity J reference substance 345891-62-5 RS-A029038 C34H37FN2O5 572.67
Atorvastatin EP Impurity A 433289-84-0 RS-A029041 C33H36N2O5 540.65
Atorvastatin Impurity 36 444577-70-2 RS-A029042 C26H25NO3 399.48
Atorvastatin Impurity 57 472967-95-6 RS-A029043 C40H47FN2O5 654.81
Atorvastatin EP Impurity E 501121-34-2 RS-A029044 C33H35FN2O5 558.64
Atorvastatin Impurity 46 581772-29-4 RS-A029045 C36H39FN2O5 598.7
Atorvastatin Impurity 69 616201-27-5 RS-A029046 C38H43FN2O5 626.76
Atorvastatin Impurity 74 62148-67-8 RS-A029047 C14H10ClFO 248.68
Atorvastatin Impurity 37 693793-82-7 RS-A029050 C26H23F2NO3 435.46
Atorvastatin impurity 66 693793-87-2 RS-A029051 C40H46F2N2O5 672.34
Atorvastatin Impurity 70 714963-28-7 RS-A029052 C11H17NO4 227.26
Atorvastatin Impurity F 887196-24-9 RS-A029053 C40H48FN3O8 717.82
Atorvastatin Impurity 45 887196-30-7 RS-A029055 C33H33FN2O5 556.62
Atorvastatin EP Impurity G 887324-53-0 RS-A029056 C34H37FN2O5 572.67
Atorvastatin Impurity K 906552-19-0 RS-A029057 C33H33FN2O5 556.62
Atorvastatin Impurity 78 947249-30-1 RS-A029058 C40H47FN2O5 654.81
Atorvastatin Impurity 30 947586-93-8 RS-A029059 C14H27NO4 273.37
Atorvastatin Impurity 21 1357600-18-0 RS-A029021 C14H23NO4 269.64
Atorvastatin Impurity F(Sodium salt) 1371615-56-3 RS-A029022 C40H47FN3O8.Na 716.82
Atorvastatin EP Impurity C (Na Salt) 1807481-00-0 RS-A029030 C33H34F2N2O5. 575.64
Atorvastatin impurity 22 1821498-27-4 RS-A029032 C27H29FNO61/2Ca 482.52
Atorvastatin Impurity 55 40281-50-3 RS-A029039 C14H11FO 214.24
(3S,5S)-Atorvastatin Sodium 1428118-38-0 RS-A029027 C33H34FN2NaO5 580.62
(3R,5S)-Atorvastatin 651770-09-1 RS-A029048 C33H35FN2O5 558.7
Atorvastatin Impurity 21 1035205-25-4 RS-A029001 C36H41FN2O5 600.72
Atorvastatin Impurity 49 1046118-40-4 RS-A029002 C33H33FN2O6 572.62
Atorvastatin Impurity F calcium salt 1105067-87-5 RS-A029003 C40H47FN3O8·1/2Ca 1473.7
Atorvastatin Impurity E 1105067-88-6 RS-A029004 2*C33H34FN2O5.Ca 1155.3
Atorvastatin Impurity 68 1112262-71-1 RS-A029009 C39H45FN2O5 640.33
Atorvastatin Impurity 48 1391052-00-8 RS-A029023 C33H32FN2NaO5 578.61
Atorvastatin EP Impurity A(Calcium Salt) 433289-83-9 RS-A029040 C33H35N2O5·1/2Ca 1119.4
Atorvastatin Impurity C 693793-53-2 RS-A029049 C33H33F2N2O5·1/2Ca 1191.3
Atorvastatin Impurity 23 887196-25-0 RS-A029054 2C33H34FN2O5.Ca 1155.3
(3R,5S)-Atorvastatin Calcium salt 1312366-79-2 RS-A029017 C66H68CaF2N4O10 1154.45

Structures

Frequently asked

How many Atorvastatin-related reference standards do you hold?
59 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 59 of them and 49 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply an Atorvastatin impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Atorvastatin impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Atorvastatin impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to [email protected].