Erlotinib impurities and related standards

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

CAS numbers are listed for 30 of 30; 27 entries carry a structure drawing.

Erlotinib — related standards
Compound	CAS No.	Catalogue No.	Formula	MW
Erlotinib Impurity 54	1145671-36-8	RS-E003002	C8H5ClN2O2	196.59
Erlotinib Impurity 72	114903-82-1	RS-E003003	C7H6N2O2	150.13
Erlotinib Impurity 73	1172625-04-5	RS-E003004	C13H18N2O7	314.29
Erlotinib Impurity 76	1241475-15-9	RS-E003005	C16H25N3O5	339.39
Erlotinib Impurity 19	1312937-41-9	RS-E003006	C15H20N2O5	308.14
Erlotinib Impurity 8	1346601-52-2	RS-E003007	C23H26ClN3O4	443.16
Erlotinib Impurity 36 HCl	1354727-63-1	RS-E003008	C22H25N3O5.HCl	411.46
Erlotinib Impurity 20	1417161-98-8	RS-E003009	C14H19N3O4	293.14
Erlotinib Impurity 41	14235-81-5	RS-E003010	C8H7N	117.15
Erlotinib Impurity 34	15411-43-5	RS-E003012	C8H9N	119.16
Erlotinib Impurity 75	16064-15-6	RS-E003013	C8H6N2O3	178.14
Erlotinib Impurity 7	1624294-38-7	RS-E003014	C22H26ClN3O4	431.16
Erlotinib Impurity 37	1683583-37-0	RS-E003015	C16H22N2O5	322.36
Erlotinib Impurity 6	179688-26-7	RS-E003016	C15H21NO8	343.33
Erlotinib Impurity 17	183322-16-9	RS-E003017	C15H22O6	298.34
Erlotinib Impurity 42 (4-Chloro-6-(2-Chloroethoxy)-7-(2-Methoxyethoxy)-Quinazoline)	183322-19-2	RS-E003018	C13H14Cl2N2O3	317.17
Erlotinib Impurity 2 (4-Chloro-7-(2-Chloroethoxy)-6-(2-Methoxyethoxy)-Quinazoline)	183322-20-5	RS-E003019	C13H14Cl2N2O3	317.17
Erlotinib Impurity 35	1839513-98-2	RS-E003020	C13H17N3O4	279.3
Erlotinib Impurity 9	2055840-54-3	RS-E003021	C24H25N3O5	435.48
Erlotinib Impurity 18 HCl	299912-61-1	RS-E003022	C22H27N3O4.HCl	397.48
Erlotinib Impurity 8	328528-74-1	RS-E003023	C20H22BrN3O4	448.32
Erlotinib Impurity 26	3943-89-3	RS-E003024	C9H10O4	182.18
Erlotinib Impurity 40	52670-38-9	RS-E003025	C8H7N	117.15
Erlotinib Impurity 29	574738-66-2	RS-E003026	C13H19NO6	285.3
Erlotinib Impurity 46	938185-06-9	RS-E003027	C16H11N3O2	277.28
Erlotinib Impurity 10	950596-58-4	RS-E003028	C13H18N2O4	266.3
Erlotinib Impurity 11	950596-59-5	RS-E003029	C16H23N3O4	321.38
Erlotinib Impurity 39	99-03-6	RS-E003030	C8H9NO	135.17
Erlotinib Impurity 74	1001416-73-4	RS-E003001	C13H17NO8	315.28
Erlotinib Impurity 70	1494468-76-6	RS-E003011	C13H19NO5	269.29

Structures

Erlotinib Impurity 54

CAS 1145671-36-8RS-E003002
COA per lot
Erlotinib Impurity 72

CAS 114903-82-1RS-E003003
COA per lot
Erlotinib Impurity 73

CAS 1172625-04-5RS-E003004
COA per lot
Erlotinib Impurity 76

CAS 1241475-15-9RS-E003005
COA per lot
Erlotinib Impurity 19

CAS 1312937-41-9RS-E003006
COA per lot
Erlotinib Impurity 8

CAS 1346601-52-2RS-E003007
COA per lot
Erlotinib Impurity 36 HCl

CAS 1354727-63-1RS-E003008
COA per lot
Erlotinib Impurity 20

CAS 1417161-98-8RS-E003009
COA per lot

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].