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N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN

CAS No.
112525-72-1
Chemical Name:
N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN
Synonyms
STK367969;Boc-DL-tryptophan;N-α-Boc-DL-Tryptophan;(tert-Butoxycarbonyl)tryptophan;N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN;N-(tert-Butoxycarbonyl)-DL-tryptophan >(tert-Butoxycarbonyl)tryptophan - [B92214];N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN USP/EP/BP;N-(tert-Butoxycarbonyl)-DL-tryptophan;3-(1H-indol-3-yl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoicaci
CBNumber:
CB7129966
Molecular Formula:
C16H20N2O4
Molecular Weight:
304.34
MDL Number:
MFCD00190836
MOL File:
112525-72-1.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:42
Product description Number Pack Size Price
N-(tert-Butoxycarbonyl)-DL-tryptophan B4891 1G $23
N-(tert-Butoxycarbonyl)-DL-tryptophan B4891 5G $71
(tert-Butoxycarbonyl)tryptophan 98% B92214 1g $17
(tert-Butoxycarbonyl)tryptophan 98% B92214 5g $21
(tert-Butoxycarbonyl)tryptophan 98% B92214 10g $22
More product size

N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN Properties

Melting point 131 °C(dec.)
Boiling point 535.7±45.0 °C(Predicted)
Density 1.262±0.06 g/cm3(Predicted)
storage temp. 2-8°C
form powder to crystal
pka 4.00±0.10(Predicted)
color White to Light yellow
optical activity -0.5°(C=0.01 g/ml DMF)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
HS Code  2933.99.8290

N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical B4891 N-(tert-Butoxycarbonyl)-DL-tryptophan 112525-72-1 1G $23 2026-04-30 Buy
TCI Chemical B4891 N-(tert-Butoxycarbonyl)-DL-tryptophan 112525-72-1 5G $71 2026-04-30 Buy
Synthonix B92214 (tert-Butoxycarbonyl)tryptophan 98% 112525-72-1 1g $17 2026-05-06 Buy
Synthonix B92214 (tert-Butoxycarbonyl)tryptophan 98% 112525-72-1 5g $21 2026-05-06 Buy
Synthonix B92214 (tert-Butoxycarbonyl)tryptophan 98% 112525-72-1 10g $22 2026-05-06 Buy
Product number Packaging Price Buy
B4891 1G $23 Buy
B4891 5G $71 Buy
B92214 1g $17 Buy
B92214 5g $21 Buy
B92214 10g $22 Buy

N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN Chemical Properties,Uses,Production

Synthesis

Di-tert-butyl dicarbonate

24424-99-5

DL-Tryptophan

54-12-6

N-[(tert-Butoxy)carbonyl]-D-tryptophan

5241-64-5

Step 3. General procedure for the preparation of BOC-D-tryptophan. To a solution of water (54 mL) containing NaOH (2.2 g, 55.0 mmol) was added DL-tryptophan (10.0 g, 49.0 mmol) and 1,4-dioxane (36 mL). Subsequently, di-tert-butyl dicarbonate (Boc2O, 10.7 g, 49.1 mmol) was added slowly and dropwise to the above mixture. The reaction mixture was stirred at room temperature for 24 hours. The progress of the reaction was monitored by thin layer chromatography (TLC) and the completion of the reaction was indicated by the unfolding of dichloromethane: methanol = 10:1 and an Rf value of 0.5. The reaction mixture was adjusted to pH 6.0 with solid citric acid and subsequently extracted with ethyl acetate (EtOAc, 30 mL x 3). The organic layers were combined, dried and concentrated to give a colorless oil. The residue was washed with petroleum ether (100 mL) and filtered, and the filter cake was further washed with petroleum ether and dried to give BOC-D-tryptophan (14.8 g, 99.0% yield) as a final white solid.

References

[1] Patent: WO2014/14937, 2014, A1. Location in patent: Paragraph 0125; 0128
[2] Patent: CN104876930, 2017, B. Location in patent: Paragraph 0054-0056
[3] Patent: US2010/297756, 2010, A1
[4] Chemistry - A European Journal, 2015, vol. 21, # 51, p. 18589 - 18593
[5] European Journal of Medicinal Chemistry, 2018, vol. 145, p. 140 - 153

N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN Preparation Products And Raw materials

Global( 77)Suppliers
Supplier Tel Email Country ProdList Advantage
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 33024 60
BOC Sciences
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GL Biochem(Binhai) Ltd.
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Dideu Industries Group Limited
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Finetech Industry Limited
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Nextpeptide Inc
+86-0571-81612335 +8613336028439 sales@nextpeptide.com China 19908 58
Aladdin Scientific
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Wuhan Fortuna Chemical Co.,Ltd
+86-2759207851; +8618007136271 hk@fortunachem.com China 6008 58
DONBOO AMINO ACID COMPANY
+8618051385538 donboo@donboo.com China 9363 58
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14100 59
N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN Boc-DL-tryptophan N-(tert-Butoxycarbonyl)-DL-tryptophan N-α-Boc-DL-Tryptophan 3-(1H-indol-3-yl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid N-(tert-Butoxycarbonyl)-DL-tryptophan > 3-(1H-indol-3-yl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoicaci N-TERT-BUTOXYCARBONYL-DL-TRYPTOPHAN USP/EP/BP (tert-Butoxycarbonyl)tryptophan STK367969 (tert-Butoxycarbonyl)tryptophan - [B92214] 112525-72-1