Montelukast Lactone (INR 19900/- 50 mg, in stock)
Catalogue No:
ACT-M006016
Common name:
Montelukast Lactone
CAS:
1100617-38-6
Mol. Weight:
425.9
Rel. CAS No
- NA
Shipping Condition
Ambient
Product Overview
Chemical Name:
(3S)-3-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-4,5-dihydro-2-benzoxepin-1(3H)-one
Shipping Temperature:
Ambient
HSN Code:
38229010
Country of Origin:
India
Smiles:
ClC1=CC=C2C=CC(/C=C/C3=CC([C@@H]4CCC5=CC=CC=C5C(O4)=O)=CC=C3)=NC2=C1
Description
Montelukast Lactone is a pharmaceutical impurity reference standard supplied by Allas Chem Tech, related to Montelukast. It is intended for use in analytical method validation (AMV) and routine quality control (QC) testing of Montelukast drug substance and drug product batches.
About This Impurity Standard
Montelukast Lactone is characterised and supplied as a 50 mg reference standard pack, priced at Rs.19900/- and currently shown as In Stock on the product listing. No source under this exact generic name was found during research. Searches surfaced a differently and more specifically named compound instead — "Montelukast KSM-II Lactone Impurity" (CAS 162515-66-4, C6H8OS, MW 128.19, chemical name 5-thiaspiro[2.4]heptan-6-one) — corroborated by 5 sources (Chemicea, Aquigenbio, Pharmaffiliates, SynZeal, Simson Pharma). This candidate is a small synthesis key-starting-material fragment (MW ~128), structurally unrelated in scale to full-size Montelukast (MW ~586) or to Montelukast's larger EP impurities (MW ~440-730). Whether Allas's generically-named "Montelukast Lactone" refers to this KSM-II fragment is NOT confirmed by any independent source under the exact name given; treated here as a plausible but unconfirmed candidate only, discussed below rather than presented as a confirmed identity.
Specifications
| Specification | Detail |
| Catalogue No. | Pending (client SKU — not available without live-site access) |
| CAS Number | Not assigned (see Open Items) |
| Chemical Name | Not published by any source consulted |
| Molecular Formula | Not published by any source consulted |
| Molecular Weight | Not published by any source consulted |
| Parent API | Montelukast |
| Category | Pharmaceutical Impurity Reference Standard |
| Pack Size | 50 mg |
| Price | Rs.19900/- (50 mg) |
| Stock Status | In Stock |
| SMILES | Not published by any source consulted |
| Shipping | Dispatched per the lead time shown in Stock Status above |
| HSN Code | 38229010 |
| Country of Origin | India |
Analytical Applications
General Use
This reference standard supports impurity profiling, forced-degradation studies, and stability-indicating HPLC/UPLC method development and validation for Montelukast-based formulations, in line with ICH Q3A/Q3B impurity qualification requirements.
Compound-Specific Notes
Opens a 7-row Montelukast EP-impurity family run on this tracker (rows 299-305). No confirmed molecular data (CAS/formula/MW/SMILES) is available for the generic "Lactone" name itself; see Open Items for the unconfirmed candidate under a different, more specific name.
Quality Control
Use of a well-characterized Montelukast Lactone reference standard supports accurate peak identification and quantitation during routine QC release testing and stability studies for Montelukast drug substance and finished-dose batches.
Documentation Supplied
Each unit of Montelukast Lactone ships with a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and supporting HPLC chromatographic/analytical data confirming the stated identity and purity.
Synonyms and Alternate Designations
No confirmed alternate name or synonym could be identified for the generic product name "Montelukast Lactone" itself. A differently-named, differently-scaled compound ("Montelukast KSM-II Lactone Impurity", CAS 162515-66-4) was found during research but could not be confirmed as the same substance as this listing — see Open Items for detail; it is not presented here as a synonym.
Frequently Asked Questions
What is Montelukast Lactone used for?
Montelukast Lactone is used as a pharmaceutical impurity reference standard for analytical method validation (AMV) and routine quality control testing of Montelukast and its formulations.
Is Montelukast Lactone available in stock?
Montelukast Lactone is listed at Rs.19900/- for a 50 mg pack; current availability is shown as in stock on the Allas Chem Tech product page.
Does Montelukast Lactone have a CAS number?
Montelukast Lactone does not have a published CAS Registry Number from the sources consulted for this listing.
What documentation is supplied with Montelukast Lactone?
Each unit of Montelukast Lactone ships with a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and supporting HPLC analytical data.
