BOC-L-Asparagine

CAS No.：7536-55-2

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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BOC-L-Asparagine Basic information

Product Name:	BOC-L-Asparagine
Synonyms:	T-BUTYLOXYCARBONYL-L-ASPARAGINE;TBOC-L-ASPARAGINE;N-TERT-BUTOXYCARBONYL-L-ASPARAGINE;N-T-BUTOXYCARBONYL-L-ASPARAGINE;N-T-BOC-L-ASPARAGINE;N2-[(1,1-Dimethylethoxy)carbonyl]-L-asparagine;NALPHA-BOC-L-ASPARAGINE;N-ALPHA-T-BOC-L-ASPARAGINE
CAS:	7536-55-2
MF:	C9H16N2O5
MW:	232.23
EINECS:	231-405-2
Product Categories:	Asparagine [Asn, N];Boc-Amino Acids and Derivative;Amino Acids (N-Protected);Biochemistry;Boc-Amino Acids;Boc-Amino acid series;Amino Acid Derivatives;Amino Acids;Heterocycles
Mol File:	7536-55-2.mol

BOC-L-Asparagine Chemical Properties

Melting point	175 °C (dec.)(lit.)
Boiling point	374.39°C (rough estimate)
density	1.2896 (rough estimate)
refractive index	-7 ° (C=1, DMF)
Fp	245°C
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	almost transparency in N,N-DMF
pka	3.79±0.10(Predicted)
form	Powder or Crystalline Powder
color	White
optical activity	[α]20/D 7.8±0.5°, c = 2% in DMF
BRN	1977963
CAS DataBase Reference	7536-55-2(CAS DataBase Reference)
EPA Substance Registry System	L-Asparagine, N2-[(1,1-dimethylethoxy)carbonyl]- (7536-55-2)

Safety Information

Hazard Codes	Xn
Risk Statements	20/21/22-36/37/38
Safety Statements	22-24/25-36-26
WGK Germany	3
TSCA	Yes
HS Code	2924 19 00
HazardClass	IRRITANT

MSDS Information

Provider	Language
Boc-Asn-OH	English
SigmaAldrich	English
ALFA	English

BOC-L-Asparagine Usage And Synthesis

Chemical Properties	WHITE AMORPHOUS POWDER
Uses	Nα-Boc-L-asparagine is an N-Boc-protected form of L-Asparagine (A790005). L-Asparagine was first isolated by Robiquet and Vauquelin from asparagus juice (a high source of L-asparagine). L-Asparagine is often incorporated into proteins, and is a basis for some cancer therapies as certain cancerous cells require L-asparagine for growth.
Definition	ChEBI: The Nalpha-t-butoxycarbonyl derivative of L-asparagine

BOC-L-Asparagine Preparation Products And Raw materials

Raw materials	L-Asparagine-->L-Asparagine, N,N2-bis[(1,1-dimethylethoxy)carbonyl]--->T -BUTYL-P-NITROPHENYL CARBONATE-->CARBONIC ACID TERT-BUTYL 2,4,5-TRICHLOROPHENYL ESTER-->BOC-ASP-OH-->Carbonofluoridic acid, 1,1-dimethylethyl ester-->Di-tert-butyl dicarbonate-->tert-butyl azidoformate-->2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
Preparation Products	BOC-BETA-CYANO-ALA-OH-->BOC-DAP(Z)-OH DCHA-->N-Boc-N'-xanthyl-L-asparagine-->4-Nitrophenol

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