Tryptophan Impurity 174
- CAS18749-30-9
- CatalogueRS-U009119
- FormulaC11H12N2O3
- MW220.23
On this page
Product identification
| Product name | Tryptophan Impurity 174 |
|---|---|
| Catalogue No. | RS-U009119 |
| CAS No. | 18749-30-9 |
| Molecular formula | C11H12N2O3 |
| Molecular weight | 220.23 |
| Standard type | Impurity Reference Standards |
| Drug substance | Tryptophan |
| Intended use | For laboratory and research use only. Not for human or veterinary use. |
Data source: standardpharm.cn
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-U009119 / 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-U009119 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?
Storage and shipping conditions are stated on the certificate of analysis for the lot you receive. 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:
- Other impurities of Tryptophan
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-U009119
- Request a quotation for RS-U009119
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 Tryptophan
All 71 further standards are listed here — every link is in the page, not loaded later.
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Tryptophan Impurity 107
COA per lot -
Tryptophan Impurity 55
COA per lot -
Tryptophan Impurity 32
COA per lot -
Tryptophan Impurity 23
COA per lot -
Tryptophan Impurity 72
COA per lot -
Tryptophan EP Impurity A
COA per lot -
Tryptophan Impurity 202
COA per lot -
Tryptophan Impurity 38
COA per lot -
Tryptophan Impurity 68
COA per lot -
Tryptophan Impurity 18
COA per lot -
Tryptophan Impurity 54
COA per lot -
Tryptophan Impurity 171
COA per lot -
Tryptophan Impurity 191
COA per lot -
Tryptophan Impurity 31
COA per lot -
Tryptophan Impurity 185
COA per lot -
Tryptophan EP Impurity B
COA per lot -
Tryptophan Impurity 196
COA per lot -
Tryptophan Impurity 111 Monomer
COA per lot -
Tryptophan EP Impurity G
COA per lot -
Tryptophan Impurity 46
COA per lot -
Tryptophan Impurity 115
COA per lot -
Tryptophan Impurity 114
COA per lot -
Tryptophan Impurity 203
COA per lot -
Tryptophan Impurity 201
COA per lot -
Tryptophan Impurity 144
COA per lot -
Tryptophan Impurity 41
COA per lot -
Tryptophan Impurity 134 Hydrochloride
COA per lot -
Tryptophan EP Impurity C
COA per lot -
Tryptophan Impurity 175
COA per lot -
Tryptophan Impurity 187
COA per lot -
Tryptophan Impurity 142
COA per lot -
Tryptophan Impurity 170
COA per lot -
Tryptophan Impurity 44
COA per lot -
Tryptophan Impurity 180
COA per lot -
Tryptophan Impurity 24
COA per lot -
Tryptophan Impurity 49
COA per lot -
Tryptophan Impurity 1
COA per lot -
Tryptophan Impurity 74
COA per lot -
Tryptophan Impurity 197
COA per lot -
Tryptophan Impurity 29
COA per lot -
Tryptophan Impurity 28
COA per lot -
Tryptophan Impurity 52
COA per lot -
Tryptophan Impurity 65 (N-Nitroso Tryptophan)
COA per lot -
Tryptophan Impurity 22 HCl
COA per lot -
Tryptophan Impurity 133
COA per lot -
Tryptophan Impurity 63
COA per lot -
Tryptophan Impurity 26
COA per lot -
Tryptophan Impurity 17
COA per lot -
Tryptophan Impurity 45
COA per lot -
Tryptophan Impurity 27
COA per lot -
Tryptophan Impurity 162
COA per lot -
Tryptophan EP Impurity B
COA per lot -
Tryptophan EP Impurity F
COA per lot -
Tryptophan EP Impurity K
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Tryptophan EP Impurity J
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Tryptophan Impurity 15
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Tryptophan EP Impurity L
COA per lot -
Tryptophan EP Impurity I
COA per lot -
Tryptophan EP Impurity H
COA per lot -
L-Tryptophan tert-Butyl Ester Hydrochloride
COA per lot -
5-(2-Fluoroethoxy)-L-tryptophan
COA per lot -
D,L-Tryptophan-13C2,15N
COA per lot -
N-Acetyl 6-Chlorotryptophan
COA per lot -
Methyl Tryptophanate
COA per lot -
5-Fluoro-D-tryptophan
COA per lot -
5-Hydroxy L-Tryptophan-d4
COA per lot -
L-Tryptophan-15N2
COA per lot -
Tryptophan Impurity 44
COA per lot
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.