Erlotinib Impurity 42

Erlotinib Impurity 42
Catalog No. KME003062
CAS No. NA
Formula C13H17NO8
FW 315.3
Unit Price Stock
100 mg Enquire Enquire
Chemical Name Ethyl 4,5-bis(2-hydroxyethoxy)-2-nitrobenzoate
Purity >95%
Storage Store at 2-8 deg. C for long term storage
Shipping Product is stable to be Shipped at Room Temperature
Download MSDS

Related Products

Erlotinib Related Compound A

Erlotinib Related Compound A

CAS No. : 299912-60-0 (free base) , 299912-59-7 (HCl salt)

CAT No. : KME003001

Formula : C25H29N3O5 : HCl

FW : 451.51 : 36.5

View Details
Erlotinib HCL Impurity-A

Erlotinib HCL Impurity-A

CAS No. : 179688-29-0

CAT No. : KME003002

Formula : C14H18N2O5

FW : 294.30

View Details
Erlotinib HCL Impurity-B

Erlotinib HCL Impurity-B

CAS No. : 54060-30-9

CAT No. : KME003003

Formula : C8H7N

FW : 117.15

View Details
Erlotinib HCL Impurity-D

Erlotinib HCL Impurity-D

CAS No. : 183322-18-1

CAT No. : KME003004

Formula : C14H17ClN2O4

FW : 312.75

View Details
Desalkyne Erlotinib Benzoic Acid

Desalkyne Erlotinib Benzoic Acid

CAS No. : 1809351-86-7

CAT No. : KME003007

Formula : C21H23N3O6

FW : 413.4

View Details
Didesmethyl Erlotinib

Didesmethyl Erlotinib

CAS No. : 183321-84-8

CAT No. : KME003011

Formula : C20H19N3O4

FW : 365.4

View Details
Erlotinib 4-Hydroxy Metabolite

Erlotinib 4-Hydroxy Metabolite

CAS No. : NA

CAT No. : KME003014

Formula : C22H23N3O5 : HCl

FW : 409.4 : 36.4

View Details
Erlotinib Acetate

Erlotinib Acetate

CAS No. : 2055840-54-3

CAT No. : KME003015

Formula : C24H25N3O5

FW : 435.5

View Details
Erlotinib Carboxylic Acid

Erlotinib Carboxylic Acid

CAS No. : 882420-21-5

CAT No. : KME003017

Formula : C22H25N3O6

FW : 427.5

View Details
Erlotinib EP Impurity A

Erlotinib EP Impurity A

CAS No. : 179688-29-0

CAT No. : KME003020

Formula : C14H18N2O5

FW : 294.3

View Details
Erlotinib EP Impurity B

Erlotinib EP Impurity B

CAS No. : 54060-30-9

CAT No. : KME003021

Formula : C8H7N

FW : 117.2

View Details
Erlotinib EP Impurity C HCl salt

Erlotinib EP Impurity C HCl salt

CAS No. : NA

CAT No. : KME003022

Formula : C22H25N3O5 : HCl

FW : 411.5 : 36.5

View Details
Erlotinib EP Impurity D

Erlotinib EP Impurity D

CAS No. : 183322-18-1

CAT No. : KME003023

Formula : C14H17ClN2O4 

FW : 312.8 

View Details
Erlotinib EP Impurity E

Erlotinib EP Impurity E

CAS No. : 1058132-82-3

CAT No. : KME003024

Formula : C22H25N3O4

FW : 395.5

View Details
Erlotinib EP Impurity H

Erlotinib EP Impurity H

CAS No. : 183320-19-6

CAT No. : KME003027

Formula : C21H20ClN3O3 : HCl

FW : 397.9 : 36.5

View Details
Erlotinib EP Impurity J

Erlotinib EP Impurity J

CAS No. : 183321-83-7

CAT No. : KME003029

Formula : C21H20ClN3O3

FW : 397.9

View Details
Erlotinib EP Impurity L

Erlotinib EP Impurity L

CAS No. : 183321-82-6

CAT No. : KME003031

Formula : C20H17Cl2N3O2

FW : 402.3

View Details
Erlotinib HCl

Erlotinib HCl

CAS No. : 183319-69-9

CAT No. : KME003033

Formula : C22H23N3O4 : HCl

FW : 393.4 : 36.5

View Details
Erlotinib Impurity 11

Erlotinib Impurity 11

CAS No. : 179688-26-7

CAT No. : KME003036

Formula : C15H21NO8

FW : 343.3

View Details
Erlotinib Impurity 12

Erlotinib Impurity 12

CAS No. : 1145671-52-8

CAT No. : KME003037

Formula : C20H23N3O4

FW : 369.4

View Details
Erlotinib Impurity 14

Erlotinib Impurity 14

CAS No. : 950596-59-5

CAT No. : KME003038

Formula : C16H23N3O4

FW : 321.4

View Details
Erlotinib Impurity 15

Erlotinib Impurity 15

CAS No. : 3943-89-3

CAT No. : KME003039

Formula : C9H10O4

FW : 182.2

View Details
Erlotinib Impurity 21

Erlotinib Impurity 21

CAS No. : 2055841-66-0

CAT No. : KME003045

Formula : C22H27N3O4 : HCl

FW : 397.5 : 36.5

View Details
Erlotinib Impurity 23

Erlotinib Impurity 23

CAS No. : 1417161-98-8

CAT No. : KME003046

Formula : C14H19N3O4

FW : 293.3

View Details
Erlotinib Impurity 25

Erlotinib Impurity 25

CAS No. : 585-79-5

CAT No. : KME003048

Formula : C6H4BrNO2

FW : 202

View Details
Erlotinib Impurity 26

Erlotinib Impurity 26

CAS No. : 115-19-5

CAT No. : KME003049

Formula : C5H8O

FW : 84.1

View Details
Erlotinib Impurity 27

Erlotinib Impurity 27

CAS No. : 183322-16-9

CAT No. : KME003050

Formula : C15H22O6

FW : 298.3

View Details
Erlotinib Impurity 29

Erlotinib Impurity 29

CAS No. : 882172-54-5

CAT No. : KME003051

Formula : C22H27N3O6

FW : 429.5

View Details
Erlotinib Impurity 9

Erlotinib Impurity 9

CAS No. : 328528-74-1

CAT No. : KME003074

Formula : C20H22BrN3O4

FW : 448.3

View Details
Erlotinib Methoxy Impurity

Erlotinib Methoxy Impurity

CAS No. : 1312937-41-9

CAT No. : KME003077

Formula : C15H20N2O5

FW : 308.3

View Details
Erlotinib USP Related Compound A

Erlotinib USP Related Compound A

CAS No. : NA

CAT No. : KME003080

Formula : C25H29N3O5 : HCl : H2O

FW : 451.5 : 36.5 : 18.0

View Details
N-Methoxyethyl Erlotinib HCl

N-Methoxyethyl Erlotinib HCl

CAS No. : NA

CAT No. : KME003082

Formula : C25H29N3O5 : HCl

FW : 451.5 : 36.5

View Details
Erlotinib EP Impurity K

Erlotinib EP Impurity K

CAS No. : 2204518-92-1

CAT No. : KME003030

Formula : C22H24ClN3O4

FW : 429.9

View Details
Erlotinib Impurity 18

Erlotinib Impurity 18

CAS No. : 236750-62-2

CAT No. : KME003042

Formula : C13H20N2O5

FW : 284.3

View Details
7-O-Desmethyl Erlotinib Hydrochloride

7-O-Desmethyl Erlotinib Hydrochloride

CAS No. : 183365-34-6

CAT No. : KME003006

Formula : C21H21N3O4 : HCl

FW : 379.4 : 36.5

View Details
Desmethyl Erlotinib Acetate

Desmethyl Erlotinib Acetate

CAS No. : 183320-15-2

CAT No. : KME003008

Formula : C23H23N3O5

FW : 421.5

View Details
Desmethyl Erlotinib Hydrochloride

Desmethyl Erlotinib Hydrochloride

CAS No. : 183320-51-6

CAT No. : KME003009

Formula : C21H21N3O4 : HCl

FW : 379.4 : 36.5

View Details
Erlotinib

Erlotinib

CAS No. : 183321-74-6

CAT No. : KME003012

Formula : C22H23N3O4

FW : 393.4

View Details
Erlotinib Aldehyde

Erlotinib Aldehyde

CAS No. : 1278586-80-3

CAT No. : KME003016

Formula : C21H23N3O5

FW : 397.4

View Details
Erlotinib EP Impurity F

Erlotinib EP Impurity F

CAS No. : 1809951-10-7

CAT No. : KME003025

Formula : C28H34N4O9

FW : 570.6

View Details
Erlotinib EP Impurity G

Erlotinib EP Impurity G

CAS No. : 183322-19-2

CAT No. : KME003026

Formula : C13H14Cl2N2O3

FW : 317.2

View Details
Erlotinib EP Impurity I

Erlotinib EP Impurity I

CAS No. : 183322-20-5

CAT No. : KME003028

Formula : C13H14Cl2N2O3

FW : 317.2

View Details
Erlotinib EP Impurity M

Erlotinib EP Impurity M

CAS No. : 183322-21-6

CAT No. : KME003032

Formula : C12H11Cl3N2O2

FW : 321.6

View Details
Erlotinib Impurity 1

Erlotinib Impurity 1

CAS No. : 1710372-46-5

CAT No. : KME003034

Formula : C14H16Cl2N2O4

FW : 347.2

View Details
Erlotinib Impurity 10

Erlotinib Impurity 10

CAS No. : 183322-17-0

CAT No. : KME003035

Formula : C15H23NO6 : HCl

FW : 313.4 : 36.5

View Details
Erlotinib Impurity 16

Erlotinib Impurity 16

CAS No. : 1241475-15-9

CAT No. : KME003040

Formula : C16H25N3O5

FW : 339.4

View Details
Erlotinib Impurity 17

Erlotinib Impurity 17

CAS No. : 236750-65-5

CAT No. : KME003041

Formula : C13H16N2O6

FW : 296.3

View Details
Erlotinib Impurity 19

Erlotinib Impurity 19

CAS No. : 2512209-22-0

CAT No. : KME003043

Formula : C15H23NO6

FW : 313.4

View Details
Erlotinib Impurity 20

Erlotinib Impurity 20

CAS No. : NA

CAT No. : KME003044

Formula : C22H23N3O6

FW : 393.5

View Details
Erlotinib Impurity 24

Erlotinib Impurity 24

CAS No. : 938185-06-9

CAT No. : KME003047

Formula : C16H11N3O2

FW : 277.3

View Details
Erlotinib Impurity 30

Erlotinib Impurity 30

CAS No. : NA

CAT No. : KME003052

Formula : C22H25N3O5

FW : 411.5

View Details
Erlotinib Impurity 31

Erlotinib Impurity 31

CAS No. : 183320-24-3

CAT No. : KME003053

Formula : C23H23N3O5

FW : 421.5

View Details
Erlotinib Impurity 32

Erlotinib Impurity 32

CAS No. : 2518426-67-8

CAT No. : KME003054

Formula : C15H23NO6 : HCl

FW : 313.4 : 36.5

View Details
Erlotinib Impurity 33

Erlotinib Impurity 33

CAS No. : 1839513-98-2

CAT No. : KME003055

Formula : C13H17N3O4

FW : 279.3

View Details
Erlotinib Impurity 36

Erlotinib Impurity 36

CAS No. : NA

CAT No. : KME003056

Formula : C14H19ClN2O4

FW : 314.8

View Details
Erlotinib Impurity 37

Erlotinib Impurity 37

CAS No. : NA

CAT No. : KME003057

Formula : C16H22N2O5

FW : 322.4

View Details
Erlotinib Impurity 38

Erlotinib Impurity 38

CAS No. : NA

CAT No. : KME003058

Formula : C12H16O5

FW : 240.3

View Details
Erlotinib Impurity 39

Erlotinib Impurity 39

CAS No. : 1012057-39-4

CAT No. : KME003059

Formula : C12H16O5

FW : 240.3

View Details
Erlotinib Impurity 40

Erlotinib Impurity 40

CAS No. : 1061230-98-5

CAT No. : KME003060

Formula : C14H20O6

FW : 284.3

View Details
Erlotinib Impurity 41

Erlotinib Impurity 41

CAS No. : 1061231-00-2

CAT No. : KME003061

Formula : C14H20O6

FW : 284.3

View Details
Erlotinib Impurity 43

Erlotinib Impurity 43

CAS No. : NA

CAT No. : KME003063

Formula : C13H15Cl2NO6

FW : 352.2

View Details
Erlotinib Impurity 44

Erlotinib Impurity 44

CAS No. : 2805078-67-3

CAT No. : KME003064

Formula : C16H25NO6

FW : 327.4

View Details
Erlotinib Impurity 45

Erlotinib Impurity 45

CAS No. : 591-19-5

CAT No. : KME003065

Formula : C6H6BrN

FW : 172.0

View Details
Erlotinib Impurity 46

Erlotinib Impurity 46

CAS No. : 2744061-39-8

CAT No. : KME003066

Formula : C12H15NO7

FW : 285.3

View Details
Erlotinib Impurity 47

Erlotinib Impurity 47

CAS No. : 2751727-04-3

CAT No. : KME003067

Formula : C12H15NO7

FW : 285.3

View Details
Erlotinib Impurity 48

Erlotinib Impurity 48

CAS No. : NA

CAT No. : KME003068

Formula : C14H19NO8

FW : 329.3

View Details
Erlotinib Impurity 49

Erlotinib Impurity 49

CAS No. : NA

CAT No. : KME003069

Formula : C14H19NO8

FW : 329.3

View Details
Erlotinib Impurity 5

Erlotinib Impurity 5

CAS No. : 2596073-36-6

CAT No. : KME003070

Formula : C22H23N3O5

FW : 409.4

View Details
Erlotinib Impurity 50

Erlotinib Impurity 50

CAS No. : 574738-66-2

CAT No. : KME003071

Formula : C13H19NO6

FW : 285.3

View Details
Erlotinib Impurity 51

Erlotinib Impurity 51

CAS No. : NA

CAT No. : KME003072

Formula : C25H33N3O5

FW : 455.6

View Details
Erlotinib Impurity 7

Erlotinib Impurity 7

CAS No. : 950596-58-4

CAT No. : KME003073

Formula : C13H18N2O4

FW : 266.3

View Details
Erlotinib Lactose Adduct

Erlotinib Lactose Adduct

CAS No. : NA

CAT No. : KME003075

Formula : C34H43N3O14

FW : 717.7

View Details
Erlotinib metabolite M11

Erlotinib metabolite M11

CAS No. : 1170354-84-3

CAT No. : KME003076

Formula : C21H19N3O5

FW : 393.4

View Details
M-Erlotinib Nitro Compound

M-Erlotinib Nitro Compound

CAS No. : 2713768-85-3

CAT No. : KME003081

Formula : C15H21NO8

FW : 343.3

View Details
O-Erlotinib Nitro Compound

O-Erlotinib Nitro Compound

CAS No. : 2732925-07-2

CAT No. : KME003084

Formula : C15H21NO8

FW : 343.3

View Details
3-Ethynylaniline-d4

3-Ethynylaniline-d4

CAS No. : 1794883-73-0

CAT No. : KME003005

Formula : C8H3D4N

FW : 121.2

View Details
Desmethyl Erlotinib-d4

Desmethyl Erlotinib-d4

CAS No. : 1216420-11-9

CAT No. : KME003010

Formula : C21H17D4N3O4

FW : 383.4

View Details
Erlotinib 13C6 Hydrochloride

Erlotinib 13C6 Hydrochloride

CAS No. : 1210610-07-3

CAT No. : KME003013

Formula : C1613C6H23N3O4 : HCl

FW : 399.4 : 36.5

View Details
Erlotinib D4

Erlotinib D4

CAS No. : 1130852-41-3

CAT No. : KME003018

Formula : C22H19D4N3O4

FW : 397.5

View Details
Erlotinib D6

Erlotinib D6

CAS No. : 1034651-23-4

CAT No. : KME003019

Formula : C22H17D6N3O4

FW : 399.5

View Details
Erlotinib Nitroso Impurity

Erlotinib Nitroso Impurity

CAS No. : NA

CAT No. : KME003078

Formula : C22H22N4O5

FW : 422.4

View Details
N-Nitroso Erlotinib Lactam Impurity

N-Nitroso Erlotinib Lactam Impurity

CAS No. : NA

CAT No. : KME003083

Formula : C14H17N3O6

FW : 323.3

View Details
Erlotinib Related compound A

Erlotinib Related compound A

CAS No. : NA

CAT No. : KME003079

Formula : C24H31N3O5 : HCl

FW : 441.5 : 36.5

View Details

About Us

K. M. Pharma Solution Pvt. Ltd., India (CIN: U72100GJ2023PTC141278), is a leading, innovation-driven company accredited by FDCA, GMP-GLP, ISO 9001:2015, and NABL (ISO/IEC 17025 & ISO 17034). Specializing in the design, synthesis, and characterization of pharmaceutical impurity standards and reference materials, we offer an extensive portfolio including nitrosamine impurities, pharmacopeial and non-pharmacopeial impurities, drug metabolites, glucuronides, process degradants, excipient-related impurities, unknown impurity isolation & structural elucidation, and stable isotope-labeled compounds.

As an integrated Contract Research, Development & Manufacturing Organization (CRDMO), we provide end-to-end scientific services — from early-stage discovery through to commercial supply — with a strong focus on quality, compliance, and customer satisfaction.

Contact Us

  • Unit No.101, Shivam Industrial park,
    Sarkhej-bavala NH=8A, At-Moraiya, Changodar,
    Ahmedabad (Gujarat), India - 382213
  • contact@kmpharma.in
  • +91 9898822121

© 2025 K.M.Pharma. All Rights Reserved