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N-Acetyl-DL-tryptophan

Product Name
N-Acetyl-DL-tryptophan
CAS No.
87-32-1
Chemical Name
N-Acetyl-DL-tryptophan
Synonyms
AURORA 2470;AC-DL-TRP-OH;N-Ac-DL-Trp-OH;N-ACETYL-DL-TRP;acetyltryptophan;AKOS BBS-00007672;N-Ac-DL-Tryptophan;DL-ACETYLTRYPTOPHAN;N-Acetyl-DL-tryptoph;DL-N-Acetyltryptophan
CBNumber
CB3765850
Molecular Formula
C13H14N2O3
Formula Weight
246.26
MOL File
87-32-1.mol
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N-Acetyl-DL-tryptophan Property

Melting point:
204-206 °C (dec.) (lit.)
Boiling point:
389.26°C (rough estimate)
alpha 
-0.5～+0.5°(20℃/D)(c=2,C2H5OH)
Density 
1.1855 (rough estimate)
vapor pressure 
<0.00005 mPa ( 20 °C)
refractive index 
1.6450 (estimate)
storage temp. 
2-8°C
solubility 
Slightly soluble in water, very soluble in ethanol (96 per cent). It dissolves in dilute solutions of alkali hydroxides.
pka
3.65±0.10(Predicted)
form 
Powder
color 
White to light yellow
PH
3.25 (20°C, 0.5g/L in H2O)
biological source
synthetic
Water Solubility 
INSOLUBLE IN COLD WATER
BRN 
89478
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
DZTHIGRZJZPRDV-UHFFFAOYSA-N
LogP
-0.408 (est)
CAS DataBase Reference
87-32-1(CAS DataBase Reference)
NIST Chemistry Reference
Acetyl-dl-tryptophan(87-32-1)
EPA Substance Registry System
Tryptophan, N-acetyl- (87-32-1)
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Safety

Safety Statements 
24/25
WGK Germany 
3
Hazard Note 
Keep Cold
TSCA 
Yes
HS Code 
29339990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
A6251
Product name
N-Acetyl-DL-tryptophan
Packaging
5g
Price
$30.4
Updated
2025/07/31
Sigma-Aldrich
Product number
PHR9289
Product name
<I>N</I>-Acetyl-<SC>DL</SC>-tryptophan
Purity
certified reference material, TraceCERT?, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Packaging
100MG
Price
$308
Updated
2025/07/31
Sigma-Aldrich
Product number
A6251
Product name
N-Acetyl-DL-tryptophan
Packaging
1kg
Price
$1500
Updated
2025/07/31
Sigma-Aldrich
Product number
1.18488
Product name
<I>N</I>-Acetyl-<SC>DL</SC>-tryptophan
Purity
EMPROVE? EXPERT, Ph. Eur., BP
Packaging
5kg
Price
$7258
Updated
2025/07/31
Sigma-Aldrich
Product number
1.18488
Product name
<I>N</I>-Acetyl-<SC>DL</SC>-tryptophan
Purity
EMPROVE? EXPERT, Ph. Eur., BP
Packaging
25kg
Price
$32708
Updated
2025/07/31
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N-Acetyl-DL-tryptophan Chemical Properties,Usage,Production

Chemical Properties

white powder

Uses

N-Acetyl-DL-tryptophan is produced via chemical synthesis using the standard amino acid, tryptophan. It can be used in downstream applications of biopharmaceutical production as a transfer agent or stabilizer.

Definition

ChEBI: An N-acetylamino acid that is the N-acetyl derivative of tryptophan.

Flammability and Explosibility

Not classified

Purification Methods

A likely impurity is tryptophan. Crystallise it from EtOH by adding water. [Cowgill Biochim Biophys Acta 200 18 1970, DL: Berg J Biol Chem 100 79 1933, Beilstein 22/14 V 40-50.]

N-Acetyl-DL-tryptophan Preparation Products And Raw materials

Raw materials

Preparation Products

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N-Acetyl-DL-tryptophan Suppliers

Americas 1 Austria 1 Belgium 2 China 315 Europe 3 Germany 10 India 30 Japan 12 Poland 1 Singapore 1 Slovakia 1 Switzerland 5 The Netherlands 1 United Kingdom 21 United States 68 USA 1 Global 473
TCI Europe
Tel
320-37350700
Fax
+32 (0)37350701
Email
sales@tcieurope.eu
Country
Europe
ProdList
23671
Advantage
75
ecochem international chemical broker
Tel
--
Fax
--
Email
export@ecochem.dk
Country
Europe
ProdList
6371
Advantage
66
kemikalieimport
Tel
--
Fax
--
Email
Sales@kemikalieimport.dk
Country
Europe
ProdList
6685
Advantage
47
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View Lastest Price from N-Acetyl-DL-tryptophan manufacturers

Anhuyan (Hainan) Biotechnology Co., LTD
Product
N-Acetyl-DL-tryptophan 87-32-1
Price
US $0.00/kg
Min. Order
0.001kg
Purity
99%
Supply Ability
200000T
Release date
2025-06-06
WUHAN FORTUNA CHEMICAL CO., LTD
Product
N-Acetyl-DL-tryptophan 87-32-1
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
99%min AJI
Supply Ability
1000kg
Release date
2021-09-22
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
N-Acetyl-DL-tryptophan 87-32-1
Price
US $999.00-800.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000
Release date
2024-08-22

87-32-1, N-Acetyl-DL-tryptophanRelated Search:

L-Tryptophan Acetylacetone DL-Tryptophan L-5-Hydroxytryptophan Acetyl chloride N-Acetyl-L-tryptophan N-Acetyl-L-cysteine Diethyl acetamidomalonate N-Acetylneuraminic acid N-[(tert-Butoxy)carbonyl]-D-tryptophan BZ-TRP-OH AC-TRP-OET TRYPTAMINE HYDROCHLORIDE 3-Indolepropionic acid Dipeptide-2 GLYCYL-DL-TRYPTOPHAN H-MET-TRP-OH H-LEU-TRP-OH

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  • 87-32-1
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  • Amino Acid Derivatives
  • Specialty Synthesis
  • Tryptophan
  • Peptide Synthesis
  • Indoles
  • Tryptophans