Lemborexant Impurity 138
- CAS1369767-26-9
- CatalogueRS-L049025
- FormulaC17H17FN2O2
- MW300.33
IN STOCK
On this page
Product identification
| Product name | Lemborexant Impurity 138 |
|---|---|
| Catalogue No. | RS-L049025 |
| CAS No. | 1369767-26-9 |
| Molecular formula | C17H17FN2O2 |
| Molecular weight | 300.33 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Lemborexant |
| Also known as | Lemborexant Impurity 37 |
| 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-L049025 / 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-L049025 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:
- Other impurities of Lemborexant
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-L049025
- Request a quotation for RS-L049025
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 Lemborexant
All 72 further standards are listed here — every link is in the page, not loaded later.
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Lemborexant
CUSTOM SYNTHESISRS-U017218 -
(1S,5R)-1-(3-fluorophenyl)-3-oxabicyclo[3.1.0]hexan-2-one
IN STOCKRS-P002172 -
2,4-Dimethylpyrimidin-5-ol
CUSTOM SYNTHESISRS-C002096 -
2,5-Difluoropyridine
IN STOCKRS-U069330 -
2-Amino-5-fluoropyridine
IN STOCKRS-C019024 -
2-Bromopyridin-4-amine
IN STOCKRS-U055859 -
2-Chloro-5-fluoropyridine
CUSTOM SYNTHESISRS-U071767 -
2-Chloro-5-nitropyridine
CUSTOM SYNTHESISRS-C003068 -
3-Fluorophenylacetic acid
IN STOCKRS-U014839 -
5-Amino-2-fluoropyridine
IN STOCKRS-U089108 -
Diethyl Butylphosphonate
CUSTOM SYNTHESISRS-U211MIO -
Lemborexant (S,S Isomer)
IN STOCKRS-L049019 -
Lemborexant M7
BACK ORDERRS-L049053 -
Lemborexant M9
CUSTOM SYNTHESISRS-L049054 -
Lemborexant Metabolite M10
BACK ORDERRS-L049003 -
Lemborexant N1-Oxide
CUSTOM SYNTHESISRS-L049002 -
Lemborexant(R,R Isomer)
IN STOCKRS-L049018 -
Lemborexant Impurity 04
BACK ORDERRS-L049004 -
Lemborexant impurity 12
IN STOCKRS-I001B25 -
Lemborexant impurity 13
IN STOCKRS-I001A2R -
Lemborexant Impurity 13
IN STOCKRS-L049015 -
Lemborexant Impurity 14
CUSTOM SYNTHESISRS-L049032 -
Lemborexant Impurity 24
CUSTOM SYNTHESISRS-I001AFE -
Lemborexant Impurity 29
BACK ORDERRS-I001ACH -
Lemborexant Impurity 37
BACK ORDERRS-Z401DZZ -
Lemborexant Impurity 40
IN STOCKRS-L049047 -
Lemborexant Impurity 45
CUSTOM SYNTHESISRS-I001264 -
Lemborexant Impurity 61
IN STOCKRS-L049005 -
Lemborexant Impurity 64
IN STOCKRS-I001A4U -
Lemborexant Impurity 68 (Mixture of Enantiomers)
CUSTOM SYNTHESISRS-L049031 -
Lemborexant Impurity 69
IN STOCKRS-L049039 -
Lemborexant Impurity 71
IN STOCKRS-L049045 -
Lemborexant Impurity 76
BACK ORDERRS-I001A8T -
Lemborexant Impurity 77
IN STOCKRS-L049035 -
Lemborexant Impurity 85
IN STOCKRS-L049020 -
Lemborexant Impurity 94
IN STOCKRS-I001BPN -
Lemborexant Impurity 98
IN STOCKRS-I001B95 -
Lemborexant Impurity 109
CUSTOM SYNTHESISRS-I001BFB -
Lemborexant Impurity 114
IN STOCKRS-L049050 -
Lemborexant Impurity 116
IN STOCKRS-L049051 -
Lemborexant Impurity 117
IN STOCKRS-L049010 -
Lemborexant Impurity 118
IN STOCKRS-L049029 -
Lemborexant Impurity 119
IN STOCKRS-L049033 -
Lemborexant Impurity 120
IN STOCKRS-L049044 -
Lemborexant Impurity 121
IN STOCKRS-L049052 -
Lemborexant Impurity 123
IN STOCKRS-L049001 -
Lemborexant Impurity 124
IN STOCKRS-L049006 -
Lemborexant Impurity 125
IN STOCKRS-L049007 -
Lemborexant Impurity 126
IN STOCKRS-L049008 -
Lemborexant Impurity 127
IN STOCKRS-L049009 -
Lemborexant Impurity 128
IN STOCKRS-L049011 -
Lemborexant Impurity 129
IN STOCKRS-L049012 -
Lemborexant Impurity 130
IN STOCKRS-L049013 -
Lemborexant Impurity 131
CUSTOM SYNTHESISRS-L049014 -
Lemborexant Impurity 132
IN STOCKRS-L049016 -
Lemborexant Impurity 133
CUSTOM SYNTHESISRS-L049017 -
Lemborexant Impurity 134
IN STOCKRS-L049021 -
Lemborexant Impurity 135
IN STOCKRS-L049022 -
Lemborexant Impurity 136
CUSTOM SYNTHESISRS-L049023 -
Lemborexant Impurity 137
IN STOCKRS-L049024 -
Lemborexant Impurity 139
IN STOCKRS-L049026 -
Lemborexant Impurity 140
IN STOCKRS-L049027 -
Lemborexant Impurity 141
IN STOCKRS-L049028 -
Lemborexant Impurity 142
IN STOCKRS-L049030 -
Lemborexant Impurity 143
IN STOCKRS-L049034 -
Lemborexant Impurity 144
IN STOCKRS-L049036 -
Lemborexant Impurity 145
IN STOCKRS-L049037 -
Lemborexant Impurity 146
CUSTOM SYNTHESISRS-L049038 -
Lemborexant Impurity 147
IN STOCKRS-L049040 -
Lemborexant Impurity 149
IN STOCKRS-L049042 -
Lemborexant Impurity 150
IN STOCKRS-L049043 -
Lemborexant Impurity 151
CUSTOM SYNTHESISRS-L049046
![Chemical structure of (1S,5R)-1-(3-fluorophenyl)-3-oxabicyclo[3.1.0]hexan-2-one](/structures/w4/ZIGLZWUYYGXYOO-GZMMTYOYSA-N.webp?v=9)
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.