Icotinib Impurity 21
- CAS1708935-20-9
- CatalogueRS-I116021
- FormulaC21H19N3O4
- MW377.4
On this page
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Product identification
| Product name | Icotinib Impurity 21 |
|---|---|
| Catalogue No. | RS-I116021 |
| CAS No. | 1708935-20-9 |
| Molecular formula | C21H19N3O4 |
| Molecular weight | 377.4 |
| Exact mass | 377.1376 (monoisotopic) |
| Availability | Custom synthesis— made to order, typically 3–4 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Icotinib |
| 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.
| 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-I116021 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
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Is the assigned value given on an “as is” basis?
How should this material be stored?
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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:
- Other impurities of Icotinib
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-I116021
- Request a quotation for RS-I116021
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 Icotinib
All 14 further standards are listed here.
Icotinib
IN STOCKRS-Z401JR9Icotinib hydrochloride
IN STOCKRS-I1160034-Chloroquinazolino [6,7-b]-12-crown-4
IN STOCKRS-I0022476-Hydroxy-4-oxo-3,4-dihydroquinazolin-7-yl acetate
IN STOCKRS-I116031Acetic acid, 2-[2-[[4-[(3-ethynylphenyl)amino]-7-(2-hydroxyethoxy)-6-quinazolinyl]oxy]ethoxy]
CUSTOM SYNTHESISRS-D123116Ethanol, 2-[[4-[(3-ethynylphenyl)amino]-7-[2-(2-hydroxyethoxy)ethoxy]-6-quinazolinyl]oxy]
CUSTOM SYNTHESISRS-D115028Icotinib-d4
IN STOCKRS-I003442N-(3-Ethynylphenyl)acetamide
IN STOCKRS-U057914Icotinib Impurity 1
BACK ORDERRS-Z400VKFIcotinib Impurity 4
CUSTOM SYNTHESISRS-Z397BSDIcotinib Impurity 6
IN STOCKRS-Z412NMQIcotinib Impurity 31
IN STOCKRS-I116002Icotinib Impurity 34
BACK ORDERRS-I116001
![Chemical structure of 4-Chloroquinazolino [6,7-b]-12-crown-4](/structures/w4/BUXRNECOVLCHCM-UHFFFAOYSA-N.webp?v=11)
![Chemical structure of 7,8,10,11,13,14-Hexahydro-[1,4,7,10]tetraoxacyclododecino[2,3-g]quinazolin-4(3H)-one](/structures/w4/FDCPITXVFMPESG-UHFFFAOYSA-N.webp?v=11)
![Chemical structure of Acetic acid, 2-[2-[[4-[(3-ethynylphenyl)amino]-7-(2-hydroxyethoxy)-6-quinazolinyl]oxy]ethoxy]](/structures/w4/DGMHDWUKQVSZAO-UHFFFAOYSA-N.webp?v=11)
![Chemical structure of Ethanol, 2-[[4-[(3-ethynylphenyl)amino]-7-[2-(2-hydroxyethoxy)ethoxy]-6-quinazolinyl]oxy]](/structures/w4/XMEZDDLMFXFSAI-UHFFFAOYSA-N.webp?v=11)
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.