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N-Benzyloxycarbonyl-L-asparagine

N-Benzyloxycarbonyl-L-asparagine structure

CAS No.: 2304-96-3

Chemical Name:: N-Benzyloxycarbonyl-L-asparagine

Synonyms: CBZ-L-ASPARAGINE;Z-ASN-OH;CBZ-L-ASN;CBZ-ASN-OH;CBZ-L-ASN-OH;Z-ASN;Z-L-ASN-OH;Z-Asn-OH 99%;Z-ASPARAGINE;CBZ asparagine

CBNumber:: CB1677773

Molecular Formula:: C12H14N2O5

Molecular Weight:: 266.25

MDL Number:: MFCD00008035

MOL File:: 2304-96-3.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-27 23:43:24

Product description	Number	Pack Size	Price
Z-Asn-OH 99%	C6404	10g	$108
Nalpha-Carbobenzoxy-L-asparagine >99.0%(T)	C0573	1g	$32
Nalpha-Carbobenzoxy-L-asparagine >99.0%(T)	C0573	10g	$77
N-CBZ-L-ASPARAGINE 97%	57122	25G	$15
N-CBZ-L-ASPARAGINE 97%	57122	100G	$49
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N-Benzyloxycarbonyl-L-asparagine Properties

Melting point	163-165 °C(lit.)
Boiling point	409.45°C (rough estimate)
alpha	6.5 º (c=2, CH3COOH)
Density	1.2846 (rough estimate)
refractive index	6.3 ° (C=1.6, AcOH)
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	almost transparency in hot Methanol
form	powder to crystal
pka	3.77±0.10(Predicted)
color	White to Almost white
optical activity	[α]20/D +6°, c = 1.6 in acetic acid
BRN	3085452
InChIKey	FUCKRCGERFLLHP-VIFPVBQESA-N
CAS DataBase Reference	2304-96-3(CAS DataBase Reference)
EPA Substance Registry System	L-Asparagine, N2-[(phenylmethoxy)carbonyl]- (2304-96-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P280-P302+P352-P362+P364

Hazard Codes

Xi,Xn

Risk Statements

20/21/22-36/37/38

Safety Statements

24/25-36-26

WGK Germany

TSCA

TSCA listed

HazardClass

IRRITANT

HS Code

29242990

NFPA 704

	1
1		0

N-Benzyloxycarbonyl-L-asparagine price More Price(82)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	C6404	Z-Asn-OH 99%	2304-96-3	10g	$108	2023-06-20	Buy
TCI Chemical	C0573	Nalpha-Carbobenzoxy-L-asparagine >99.0%(T)	2304-96-3	1g	$32	2026-04-30	Buy
TCI Chemical	C0573	Nalpha-Carbobenzoxy-L-asparagine >99.0%(T)	2304-96-3	10g	$77	2026-04-30	Buy
AstaTech	57122	N-CBZ-L-ASPARAGINE 97%	2304-96-3	25G	$15	2026-04-30	Buy
AstaTech	57122	N-CBZ-L-ASPARAGINE 97%	2304-96-3	100G	$49	2026-04-30	Buy

Product number	Packaging	Price	Buy
C6404	10g	$108	Buy
C0573	1g	$32	Buy
C0573	10g	$77	Buy
57122	25G	$15	Buy
57122	100G	$49	Buy

N-Benzyloxycarbonyl-L-asparagine Chemical Properties,Uses,Production

Chemical Properties

white to light yellow crystal powde

Uses

Nα-Cbz-L-asparagine is an N-Cbz-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.

Synthesis

70-47-3

501-53-1

2304-96-3

At 0 °C, 6.05 g (45 mmol) of L-asparagine was dissolved in 100 mL of 10% Na2CO3 aqueous solution, followed by the addition of 56 mL of 1,4-dioxane and 6.9 mL (40 mmol) of benzyl chloroformate. The reaction mixture was stirred overnight at room temperature and poured into 300 mL of water. The aqueous phase was extracted three times with ether. The aqueous phase was acidified with 2N HCl aqueous solution until a white precipitate precipitated. The precipitate was collected by filtration and washed well with ether to give Cbz-L-asparagine (Compound 14) as an off-white solid (9 g, 84% yield); Mass Spectra (ESI): m/z = 267 [M + H]+, 289 [M + Na]+.

References

[1] Tetrahedron Asymmetry, 2015, vol. 26, # 21-22, p. 1273 - 1280
[2] Tetrahedron, 2000, vol. 56, # 16, p. 2513 - 2522
[3] Tetrahedron Letters, 2015, vol. 56, # 26, p. 3999 - 4001
[4] European Journal of Organic Chemistry, 2014, vol. 2014, # 31, p. 7015 - 7022
[5] Chemical Communications, 2016, vol. 52, # 60, p. 9438 - 9441

N-Benzyloxycarbonyl-L-asparagine Preparation Products And Raw materials

Raw materials

L-Asparagine Benzyl chloroformate 1,4-Dioxane Sodium carbonate

Preparation Products

Z-ASN-GLY-OH (S)-3-N-CBZ-AMINO-SUCCINIMIDE Z-ASN-ONP

N-Benzyloxycarbonyl-L-asparagine Suppliers

Global( 444)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971	deasea125996@gmail.com	China	2472	58
Hangzhou ICH Biofarm Co., Ltd	+86-0571-28186870; +undefined8613073685410	sales@ichemie.com	China	1006	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21588	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29815	58
Xiamen AmoyChem Co., Ltd	+86-86-5926051114 +8615060885618	sales@amoychem.com	China	6366	58
Shanghai Longyu Biotechnology Co., Ltd.	+8619521488211	info@longyupharma.com	China	2514	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Bao Enluo International TradeCo.，LTD	58
Hangzhou ICH Biofarm Co., Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Xiamen AmoyChem Co., Ltd	58
Shanghai Longyu Biotechnology Co., Ltd.	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58

View Lastest Price from N-Benzyloxycarbonyl-L-asparagine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-28	N-Benzyloxycarbonyl-L-asparagine 2304-96-3	US $0.00 / Kg/Drum	1KG	98%min	500kgs	WUHAN FORTUNA CHEMICAL CO., LTD
2026-03-20	N-Benzyloxycarbonyl-L-asparagine 2304-96-3	US $10.00 / KG	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd
2026-01-04	Z-Asn-OH 2304-96-3	US $0.00 / Box	1Box	99%	200kg	Hangzhou ICH Biofarm Co., Ltd

N-Benzyloxycarbonyl-L-asparagine
2304-96-3
US $0.00 / Kg/Drum
98%min
WUHAN FORTUNA CHEMICAL CO., LTD

N-Benzyloxycarbonyl-L-asparagine
2304-96-3
US $10.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

Z-Asn-OH
2304-96-3
US $0.00 / Box
99%
Hangzhou ICH Biofarm Co., Ltd

N-Benzyloxycarbonyl-L-asparagine Spectrum

N-Benzyloxycarbonyl-L-asparagine(2304-96-3)MS N-Benzyloxycarbonyl-L-asparagine(2304-96-3)¹HNMR N-Benzyloxycarbonyl-L-asparagine(2304-96-3)¹³CNMR N-Benzyloxycarbonyl-L-asparagine(2304-96-3)IR1 N-Benzyloxycarbonyl-L-asparagine(2304-96-3)IR2 N-Benzyloxycarbonyl-L-asparagine(2304-96-3)Raman

2304-96-3(N-Benzyloxycarbonyl-L-asparagine)Related Search:

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D-(-)-Asparagine monohydrate L-Asparagine ASPARAGINASE tert-Butyl carbazate N-Carbobenzyloxyglycine

6-Aminocaproic acid FMOC-ASN(TRT)-OPFP Z-ASN-ONP Z-ASP-OME N-Cbz-L-Aspartic acid 4-tert-butyl ester

Glycine Z-ASN(TRT)-OH Z-ARG(NO2)-OH

1of4

n2-[(phenylmethoxy)carbonyl]-l-asparagin L-Asparagine, N-CBZ protected N-α-Z-L-asparagine N(a)-Benzyloxycarbonyl-L-asparagine N-A-CBZ-L-ASPARAGINE CRYSTALLINE N2-[(PHENYLMEHTOXY)CARBONYL]-L-ASPARAGINE CBZ-L-Asparagine-OH N(alpha)-Benzyloxycarbonyl-L-asparagine~Z-Asn-OH N-Carbobenzyloxy-L-asparagine N-CBZ-L-Asparagine N-Carbobenzyloxy-L-asparagine n(à)-benzyloxycarbonyl-l-asparagine n(à)-cbz-l-asparagine Z-ASN (S)-N-(BENZYLOXYCARBONYL)ASPARAGINE 4-Amino-2-{[(benzyloxy)carbonyl]amino}-4-oxobutanoic acid L-N-Cbz-Asparagine N^α-Carbobenzyloxy-L-asparagine Z-L-AspaD23-RAgine Nalpha-Carbobenzoxy-L-asparagine , 99.0%(T) Z-Asn-OH 99% 4-amino-4-oxo-2-[[oxo-(phenylmethoxy)methyl]amino]butanoic acid Asparagine, N(2)-carboxy-, N(2)-benzyl ester, L- Asparagine, N-(benzyloxy)carbonyl- Carbobenzoxy-L-asparagin Carbobenzoxy-L-asparagine CBZ asparagine Nα-Z-L-asparagine≥ 99% (HPLC) N-CBZ-L-ASN-OH Z-ASPARAGINE Z-ASN-OH Z-L-ASPARAGINE Z-L-ASN-OH N-CBZ-L-ASPARAGINE N-CBZ-L-ASPARAGINE-OH CBZ-ASN-OH CBZ-L-ASN-OH N(ɑ)-Benzyloxycarbonyl-L-asparagine, 98+% N2-[(PHENYLMETHOXY)CARBONYL]-L-ASPARAGINE N-ALPHA-BENZYLOXYCARBONYL-L-ASPARAGINE N-BENZYLOXYCARBONYL-L-ASPARAGINE N-CARBOBENZOXY-L-ASPARAGINE N(ALPHA)-CBZ-L-ASPARAGINE N-ALPHA-CARBOBENZYLOXY-L-ASPARAGINE NALPHA-CARBOBENZOXY-L-ASPARAGINE (S)-2-BENZYLOXYCARBONYLAMINO-SUCCINAMIC ACID CBZ-L-ASN CBZ-L-ASPARAGINE CARBOBENZYLOXY-L-ASPARAGINE BENZYLOXYCARBONYL-L-ASPARAGINE N2-(Benzyloxycarbonyl)-L-asparagine N2-[(Benzyloxy)carbonyl]-L-asparagine N2-Benzyloxycarbonyl-L-asparagine N(^a)-Benzyloxycarbonyl-L-asparagine, 98+% Nalpha-Carbobenzyloxy-L-asparagine,98% N(alpha)-Benzyloxycarbonyl-L-asparagine, 98+% Z-L-ASPARGINE extrapure (2S)-4-Amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid L-Asparagine, N(2)-[(phenylmethoxy)carbonyl]-