Product Name: 21,39-di-tert-butyl 1-(2,5-dioxopyrrolidin-1-yl) (S)-9,18,23-trioxo-2,5,11,14-tetraoxa-8,17,22-triazanonatriacontane-1,21,39-tricarboxylate

Abbreviation: tBuO-Ste-Glu(AEEA-AEEA-OSu)-OtBu

CAS No.: 1118767-15-9

Molecular Formula: C47H82N4O15

Molecular Weight: 943.17

Specifications of our tBuO-Ste-Glu(AEEA-AEEA-OSu)-OtBu:

Test Items		Specifications	Test Methods
Appearance		Yellowish viscous liquid	Visual
Identification		Meets the requirements	H-NMR
Molecular Weight		942.58±0.5 Da	ESI-MS
Purity		Not less than 85.0%	HPLC
e.e. %		Not less than 99.0%	HPLC
Related Substances	tBuO-Mar-Glu(AEEA-OSu)-OtBu (ZZ-68)	Not more than 1.00%	HPLC
	tBuO-Ste-Glu(AEEA-OSu)-OtBu (ZZ-76)	Not more than 1.00%	HPLC
	tBuO-Mar-Glu(AEEA-AEEA-OH)-OtBu (ZZ-18)	Not more than 1.00%	HPLC
	tBuO-Ste-Glu(AEEA-AEEA-OMe)-OtBu (ZZ-61)	Not more than 1.00%	HPLC
	tBuO-Ste-Glu(AEEA-AEEA-OH)-OtBu (ZZ-8)	Not more than 5.00%	HPLC
	NHS	Not more than 5.00%	HPLC
	tBuO-Ste-Glu(AEEA-AEEA-OSu)-OtBu-ZZ-82	Not more than 3.00%	HPLC
	DCU	Not more than 3.00%	HPLC
Moisture		Not more than 2.00%	KF
Volatile Organics	Dichloromethane	Not more than 30000 ppm	GC
	Methyl alcohol	Not more than 3000 ppm	GC
	N-heptane	Not more than 5000 ppm	GC
	Isopropyl alcohol	Not more than 5000 ppm	GC
	Tetrahydrofuran	Not more than 720 ppm	GC
	n-Hexane	Not more than 290 ppm	GC
	Ethyl acetate	Not more than 5000 ppm	GC
	Methyl tert-butyl ether	Not more than 5000 ppm	GC
Endotoxins		Not more than 2.0 EU/mg	ChP<1143>

Application:
21,39-di-tert-butyl 1-(2,5-dioxopyrrolidin-1-yl) (S)-9,18,23-trioxo-2,5,11,14-tetraoxa-8,17,22-triazanonatriacontane-1,21,39-tricarboxylate is used as an intermediate for Semaglutide.

Packaging:
1g/bottle, 3g/bottle, 5g/bottle, 10g/bottle or according to the specific requirements from customers.

Recommended Storage Conditions:
Short-term storage at room temperature; more than three months is best stored at 2-8 degrees Celsius; more than one year is best stored at -20±5 degrees Celsius.

For reducing the absorption of the moisture, it should be slowly warmed to ambient temperature before opened.

Shelf Life:
24 months if stored under above conditions.