Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-pheny… 70637-26-2

Name: Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate
Brand: Vaqora Chemicals
SKU: VQ-044329

About Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate

Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate is an impurity of Carfilzomib carrying the CAS registry number 70637-26-2. With the molecular formula C27H36N2O5, it has a molar mass of 468.6 g/mol. Systematically, it is named benzyl (2S)-2-[[(2S)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoyl]amino]-3-phenylpropanoate. It is also known as CS-M3175.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Carfilzomib to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Carfilzomib

View every impurity, metabolite and intermediate we list for Carfilzomib.

Carfilzomib impurities

Specifications & identifiers

Chemical identifiers
Product name	Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate
Catalogue No.	VQ-044329
CAS Number	70637-26-2
IUPAC name	benzyl (2S)-2-[[(2S)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoyl]amino]-3-phenylpropanoate
Molecular formula	C₂₇H₃₆N₂O₅
Molecular weight	468.6 g/mol
Exact mass	468.2624
Grade	Reference Standard
HSN code	38229090
InChIKey	IKZFNIAMQFYRSM-GOTSBHOMSA-N
SMILES	CC(C)C[C@@H](C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)OCC2=CC=CC=C2)NC(=O)OC(C)(C)C
PubChem CID	15138263

Physical properties
Physical form	Solid
LogP (XLogP3)	5.4
H-bond donors / acceptors	2 / 5
TPSA	93.7 Å²
Synonyms	(S)-Benzyl 2-((S)-2-(tert-butoxycarbonylamino)-4-methylpentanamido)-3-phenylpropanoate, (S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanamido)-3-phenylpropanoate, CS-M3175, N-tert-Butyloxycarbonyl-L-leucinyl-L-phenylalanine benzyl ester, (S)-BenZyl 2-((S)-2-((t-butoxycarbonyl)amino)-4-methylpentanamido)-3-phenylpropanoate

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate?

The CAS Registry Number of Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate is 70637-26-2. It is also known as (S)-Benzyl 2-((S)-2-(tert-butoxycarbonylamino)-4-methylpentanamido)-3-phenylpropanoate, (S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanamido)-3-phenylpropanoate, CS-M3175.

What is the molecular formula and molecular weight of Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate?

Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate has the molecular formula C27H36N2O5 and a molecular weight of 468.6 g/mol. Its IUPAC name is benzyl (2S)-2-[[(2S)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoyl]amino]-3-phenylpropanoate.

What is Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate used for?

Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate is supplied as a characterised reference material related to Carfilzomib. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate can I order?

We supply Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate?

Yes. Every lot of Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate be shipped internationally?

Yes. We export Benzyl (tert-Butoxycarbonyl)-L-leucyl-L-phenylalaninate worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.