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Fmoc-Asp(OtBu)-OH

12 Inquiries

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CAS No.:

71989-14-5

Content:

98%

Port:

济南

Packaging:

100g 1kg 10kg 25kg 100kg

Price valid (until):

2024-12-23

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Shandong Juntai Pharmaceutical Co.,ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

semaglutide intermediates,tirzepatide intermediate,degludec intermediate,insulin detemir,retatrutide intermediate

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Product Description
Seller Information
Inquiry History

Description

Fmoc-(tBu)Asp-OH;cas:71989-14-5;Fmoc-L-aspartic acid β-tert-butyl ester≥ 99.7% (HPLC, Chiral purity);N-ALPHA-(9-FLUORENYLMETHOXYCARBONYL)-L-ASPARTIC ACID BETA-T-BUTYL ESTER;N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-L-ASPARTIC ACID BETA-TERT-BUTYL ESTER;N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-L-ASPARTIC ACID BETA-T-BUTYL ESTER;N-9-FLUORENYLMETHYLOXYCARBONYL-L-ASPARTIC ACID BETA-T-BUTYL ESTER;N-9-FLUORENYLMETHYLOXYCARBONYL-L-ASPARTIC ACID BETA-TERT-BUTYL ESTER

Fmoc-Asp(OtBu)-OH is a protected form of L-aspartic acid. It is a white to light yellow crystal powder. The molecule contains ester groups and amino groups, making it prone to polymerization and unstable over time. Therefore, it is not recommended to store it for extended periods.

Items	Specifications
Melting point	148-150 °C (dec.)
alpha	-25 º (c=1,DMF 24 ºC)
Boiling point	530.45°C (rough estimate)

Basic Info

Product Name:

Fmoc-L-Asp(OtBu)-OH

Other Name:

L-Aspartic acid,N-[(9H-fluoren-9-ylmethoxy)carbonyl]-,4-(1,1-dimethylethyl) ester;N-(9-Fluorenylmethoxycarbonyl)-L-aspartic acid β-tert-butyl ester;N-(9-Fluorenylmethoxycarbonyl)aspartic acid 4-tert-butyl ester;(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-tert-butoxy-4-oxo-butanoic acid;(2S)-4-tert-Butoxy-2-[[[(9H-fluoren-9-yl)methoxy]carbonyl]amino]-4-oxobutanoic acid;4-tert-Butyl N-(fluoren-9-ylmethoxycarbonyl)-L-aspartate;Fmoc-L-Asp(OtBu)-OH;Fmoc-Asp(tBu)-OH;Fmoc-L-Asp(OtBu);(2S)-4-(tert-Butoxy)-2-([[(9H-fluoren-9-yl)methoxy]carbonyl]amino)-4-oxobutanoic acid;(2S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid;(2S)-4-tert-Butoxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-oxo-butanoic acid;109924-80-3;138451-81-7;141893-61-0;184170-71-6;259726-30-2;499139-37-6;844640-44-4;850324-95-7;958295-18-6;1357091-39-4;1617538-14-3;1632285-02-9;1643955-67-2

CAS No.:

71989-14-5

Molecular Formula:

C23H25NO6

InChIKeys:

InChIKey=FODJWPHPWBKDON-IBGZPJMESA-N

Molecular Weight:

411.45

Exact Mass:

411.45

EC Number:

276-251-7

HScode:

2924299090

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

102

XLogP3:

3.5

Appearance:

white to light yellow crystal powder

Density:

1.3±0.1 g/cm3

Melting Point:

149-152 °C

Boiling Point:

620.8°C at 760 mmHg

Flash Point:

329.3±31.5 °C

Refractive Index:

1.576

Water Solubility:

Slightly soluble in water.

Storage Conditions:

2-8°C

Specific rotation:

-25 º (c=1,DMF 24 ºC)

See More Fmoc-L-Asp(OtBu)-OH Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Fmoc-L-Asp(OtBu)-OH Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
semaglutide intermediates,tirzepatide intermediate,degludec intermediate,insulin detemir,retatrutide intermediate

Location:
Leize Road, Juancheng County, Heze City, Shandogn Province

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
20

Total Annual Revenue:
$5 million-$10 million

Total Employees:
101-200

Year of Establishment:
2020

Certifications:
is9001

Shandong Juntai Pharmaceutical Co., LTD. is a high-tech enterprise engaged in the research and manufacture of medicine, cosmetics, food and health care products. Our main product is widely used in the field such as medicine, cosmetics and food and health products. The management team is made up of members from well-known Chinese universities or pharmaceutical companies, now we have established partnerships with most domestic and foreign pharmaceutical companies, such as Gilead Science and so on.Company Profile

Since establishment, we keep the rapid development, at present, set up Research and development center on DIYA double inovation garden, jinan city. Sales company -Jinan Wanxiang chemical products co., LTD is located in tongke new drug research and development base, shun feng road, jinan high-tech zone. Production base is located in YiCheng economic development zone , ZaoZhuang city.

At present, the company's main products are new pharmaceutical API and advanced intermediates series, cosmetics active ingredients series. The dominant products are unnatural amino acids, long chain binary fatty acids and short peptides.

In the future, as a science and technology enterprise, according to the idea of"thinking altruistic", we keep to serve customers with continuous innovation service, with better quality and stable product supply. And strive to contribute our Juntai people's wisdom and love to the society and the people. Internally, we pursue the happiness of all employees. At the same time, we follow the management policy of "green, safe and intelligent manufacturing", constantly promote the production and scientific research to be more green, energy-saving and scientific, and undertake the obligations of occupational environment health and safety.

Inquiry History

12 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	(2S)-4-(TERT-BUTOXY)-2-{[(9H-FLUOREN-9-YLMETHOXY)CARBONYL]AMINO}-4-OXOBUTANOIC ACID	65.00 KG	Mar 8, 2024
India	Fmoc-Asp(otbu)-OH	1 KG	Sep 30, 2023
India	Fmoc-L-Asp(OtBu)-OH	3.75 KG	Sep 13, 2025
India	Fmoc-His(Trt)-OH	3.9 KG	Feb 9, 2026
India	(2S,3S)-2-{[(9H-FLUOREN-9-YLMETHOXY)CARBONYL]AMINO}-3-METHYLPENTANOIC ACID	60.00 KG	Mar 8, 2024
India	Fmoc-Gly-OH	0.75 KG	Feb 9, 2026
India	Fmoc-Phe-OH	0.49 KG	Feb 9, 2026
India	Fmoc-Arg(Pbf)-OH	1.63 KG	Feb 9, 2026
India	{[(9H-FLUOREN-9-YLMETHOXY)CARBONYL]AMINO}ACETIC ACID	48.00 KG	Mar 8, 2024
India	(2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-[(3-methylpentan-3-yl)oxy]-4-oxobutanoic acid	36.00 KG	Mar 8, 2024
India	Fmoc-Gln(Trt)-Thr(ψMe,Mepro)-OH	0.652 KG	May 13, 2026
India	Fmoc-Lys(palmitoyl-Glu-OtBu)-OH	0.07 KG	Feb 25, 2026

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