Etoposide Impurity 51

CAS2682936-91-8
CatalogueRS-E002010
FormulaC65H103N11O15
MW1278.6

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Chemical structure of Etoposide Impurity 51

Product identification

Product name	Etoposide Impurity 51
Catalogue No.	RS-E002010
CAS No.	2682936-91-8
Molecular formula	C65H103N11O15
Molecular weight	1278.6
Availability	Back order— restocking can be arranged, about 1–2 weeks
Standard type	Impurity Reference Standards
Drug substance	Etoposide
Also known as	Etoposide Impurity 2
Storage	Refer to the certificate of analysis (COA) supplied with each lot
Intended use	For laboratory and research use only. Not for human or veterinary use.

What is stated on the certificate

Content and purity are assigned per lot and stated on the certificate of analysis issued for the batch you receive — they are not a catalogue-level figure. The certificate records the tests performed, the specification applied and the result obtained for that lot.

Fields recorded on the certificate of analysis
Field	Basis
Identity	Spectroscopic and chromatographic methods appropriate to the material
Purity	Chromatographic purity, area normalisation unless stated otherwise
Assay / content	Mass balance, corrected for the stated volatiles and residue
Catalogue and batch numbers	RS-E002010 / batch number on the certificate
Retest date	Printed on the certificate for the lot supplied

Frequently asked

What documentation is supplied with this lot?

A certificate of analysis (COA) is issued for the lot you receive. It records the catalogue number RS-E002010 and the batch number, the tests performed, the specification applied and the result obtained. A safety data sheet is supplied with the shipment.

Is the assigned value given on an “as is” basis?

Content and purity are stated per lot on the certificate of analysis, on an “as is” basis unless the certificate says otherwise. The analytical basis for the assigned value is stated on the certificate.

How should this material be stored?

Store as stated: Refer to the certificate of analysis (COA) supplied with each lot. Re-test before use beyond the retest date printed on the certificate.

Do you supply pack sizes other than those listed?

Pack sizes are confirmed with the quotation. Quantities beyond the standard pack sizes can be quoted — send the quantity you need with your enquiry.

Finding this standard

Buyers reach this compound by CAS number, by catalogue number, through the drug substance it belongs to, or through the type of standard it is. Those routes all start here:

Searching another way? Send the structure, a SMILES string or the pharmacopoeial name — a CAS number is not required for a non-compendial impurity. Write to sales@rssechem.com.

Other standards of Etoposide

All 38 further standards are listed here — every link is in the page, not loaded later.

Etoposide

CAS 33419-42-0C29H32O13

IN STOCKRS-I006055
Etoposide phosphate

CAS 117091-64-2C29H33O16P

CUSTOM SYNTHESISRS-E002012
Etoposide EP Impurity G

CAS not assignedC39H38O17

CUSTOM SYNTHESISRS-I001BSN
Etoposide EP Impurity M

CAS 518-28-5C22H22O8

IN STOCKRS-E002017
Etoposide Impurity A

CAS 124151-67-3C37H38O15

IN STOCKRS-E002008
Etoposide Impurity B

CAS 100007-56-5C29H32O13

IN STOCKRS-E002002
Etoposide Impurity C

CAS 100007-53-2C29H32O13

IN STOCKRS-E002001
Etoposide Impurity D

CAS 23363-35-1C27H30O13

IN STOCKRS-E002015
Etoposide Impurity E

CAS 6559-91-7C21H20O8

IN STOCKRS-E002018
Etoposide Impurity H

CAS 102306-95-6C23H24O8

IN STOCKRS-E002003
Etoposide Impurity I

CAS 111712-42-6C30H34O13

IN STOCKRS-E002005
Etoposide Impurity J

CAS 118356-05-1C22H22O8

IN STOCKRS-E002007
Etoposide Impurity O

CAS 260974-95-6C33H32Cl4O15

IN STOCKRS-E002016
Etoposide Impurity P

CAS 117669-31-5C21H16O8

IN STOCKRS-E002006
Etoposide Impurity Q

CAS 153975-26-9C21H16O7

IN STOCKRS-E002014
Etoposide Impurity R

CAS 149839-65-6C50H50O20

IN STOCKRS-E002009
(-)-Epipodophyllotoxin

CAS 4375-07-9C22H22O8

BACK ORDERRS-U095253
(2R,3R)-2,3-Dihydroxy-3-((2R,4R,5R)-5-hydroxy-2-methyl-1,3-dioxan-4-yl)propanal

CAS 105453-33-6C8H14O6

IN STOCKRS-U019021
(5R,5aR,8aR,9R)-9-Hydroxy-5-(3-hydroxy-4,5-dimethoxyphenyl)-5,8,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one

CAS 54747-66-9C21H20O8

BACK ORDERRS-P007319
(5R,6R,7R,8S)-8-(((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methylhexahydropyrano[3,2-d][1,3]dioxin-6-yl)oxy)-5-(4-hydroxy-3,5-dimethoxyphenyl)-7-(hydroxymethyl)-5,6,7,8-tetrahydronaphtho[2,3-d][1,3]dioxole-6-carboxylic acid

CAS 172138-89-5C29H34O14

BACK ORDERRS-U019640
1-O-Benzyloxycarbonyl-4-O,6-O-ethylidene-beta-D-glucopyranose

CAS 35901-25-8C16H20O8

IN STOCKRS-U018424
3’-O-Desmethyl Etoposide

CAS 100007-54-3C28H30O13

BACK ORDERRS-E002025
4'-Demethylpodophyllotoxin

CAS 40505-27-9C21H20O8

CUSTOM SYNTHESISRS-C002182
4,6-O-Ethylidene-D-glucose

CAS 18465-50-4C8H14O6

IN STOCKRS-U018702
Etoposide 3',4'-Quinone

CAS 105016-65-7C28H28O13

BACK ORDERRS-E002004
Etoposide D-glucuronide

CAS 100007-55-4C35H40O19

BACK ORDERRS-E002026
HAMNO

CAS 138736-73-9C17H13NO2

IN STOCKRS-Z398G6O
Podophyllotoxone

CAS 477-49-6C22H20O8

BACK ORDERRS-U041299
Etoposide Dibenzyl-biscarbonate Impurity-2

CAS 866874-15-9C36H30O12

BACK ORDERRS-E002023
Etoposide Impurity 21

CAS 746639-24-7C21H19IO7

CUSTOM SYNTHESISRS-E002027
Etoposide Impurity 24

CAS 89709-04-6C16H20O8

IN STOCKRS-E002024
Etoposide Impurity 25

CAS 101648-63-9C20H20Cl4O10

BACK ORDERRS-E002020
Etoposide Impurity 26

CAS 149403-65-6C12H14Cl4O8

BACK ORDERRS-E002013
Etoposide Impurity 28

CAS 1174-97-6C21H22O8

BACK ORDERRS-E002021
Etoposide Impurity 33

CAS not assignedC35H32Cl6O16

BACK ORDERRS-I001242
Etoposide Impurity 50

CAS 153975-25-8C29H30O13

BACK ORDERRS-E002032
Etoposide Impurity 53

CAS 101648-62-8C23H20Cl2O9

BACK ORDERRS-E002019
Etoposide Impurity 54

CAS 2089582-90-9C8H14O6

IN STOCKRS-E002022

Pharmacopoeial names (EP, USP, BP, JP) are used for identification purposes only and do not imply endorsement by those bodies. This product is supplied for laboratory and research use only — not for human or veterinary use.