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DL-7-Azatryptophan Monohydrate

CAS No.
7303-50-6
Chemical Name:
DL-7-Azatryptophan Monohydrate
Synonyms
2-Amino-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)-propionic acid;Aza-T;SWF-77;NSC 19495;DL-7-AzaTrp-OH;7-AZATRYPTOPHAN;DL-Azatryptophan;DL-7-AZATRYPTOPHAN;TIMTEC-BB SBB005480;7-Aza-DL-tryptophan
CBNumber:
CB7312816
Molecular Formula:
C10H11N3O2
Molecular Weight:
205.21
MDL Number:
MFCD00037930
MOL File:
7303-50-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:42:00

DL-7-Azatryptophan Monohydrate Properties

Melting point 275°C dec.
Boiling point 540.2±50.0 °C(Predicted)
Density 1.49±0.1 g/cm3(Predicted)
storage temp. Keep in dark place,Sealed in dry,Store in freezer, under -20°C
pka 2.20±0.10(Predicted)
form Crystalline Powder
color Slightly off-white
optical activity 0.0848°(C=1.0029g/100ml 1N HCL)
Major Application peptide synthesis
InChI 1S/C10H11N3O2/c11-8(10(14)15)4-6-5-13-9-7(6)2-1-3-12-9/h1-3,5,8H,4,11H2,(H,12,13)(H,14,15)
InChIKey SNLOIIPRZGMRAB-UHFFFAOYSA-N
SMILES NC(Cc1c[nH]c2ncccc12)C(O)=O
CAS DataBase Reference 7303-50-6(CAS DataBase Reference)
FDA UNII 26NJJ3M0J5
UNSPSC Code 12352209
NACRES NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
WGK Germany  3
RTECS  UY8810000
Hazard Note  Harmful/Store below -10C
HS Code  2933998090
Storage Class 11 - Combustible Solids

DL-7-Azatryptophan Monohydrate price More Price(47)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical A0557 DL-7-Azatryptophan Monohydrate >98.0%(HPLC)(T) 7303-50-6 100mg $184 2021-12-16 Buy
Usbiological 259767 D,L-Azatryptophan hydrate 7303-50-6 500mg $475 2026-06-03 Buy
Usbiological 259767 D,L-Azatryptophan hydrate 7303-50-6 1g $691 2026-06-03 Buy
Usbiological 259767 D,L-Azatryptophan hydrate 7303-50-6 2g $1014 2026-06-03 Buy
Usbiological 259767 D,L-Azatryptophan hydrate 7303-50-6 5g $1753 2026-06-03 Buy
Product number Packaging Price Buy
A0557 100mg $184 Buy
259767 500mg $475 Buy
259767 1g $691 Buy
259767 2g $1014 Buy
259767 5g $1753 Buy

DL-7-Azatryptophan Monohydrate Chemical Properties, Uses, Production

Chemical Properties

White Powder

Uses

DL-7-Azatryptophan is an unusual alpha-amino acid with a very potent fluorescent activity. Its used as a vehicle for probing the structure and dynamics of protein and peptides

Synthesis

Ethyl α-Acetamido-α-carbethoxy-β-(7-aza-3-indolyl)propionate

211179-97-4

DL-7-Azatryptophan Monohydrate

7303-50-6

Step 2: Diethyl 2-((1H-pyrrolo[2,3-b]pyridin-3-yl)methyl)-2-acetamidomalonate (3.5 g, 10.08 mmol) was mixed with 37% hydrochloric acid (30 mL) and the reaction was carried out at reflux for 15 hrs. Upon completion of the reaction, the mixture was concentrated to about 10 mL. acetonitrile (5 mL) was added to the concentrate and subsequently lyophilized to give an off-white solid product. The solid was redissolved in 15% aqueous ammonia solution, pH adjusted to 7, and then diluted with water (20 mL). The precipitated white solid was collected by filtration, washed sequentially with water and ethanol, and dried to give 2-amino-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)propanoic acid (1.5 g, 72.5% yield) as a white solid. The product was analyzed by LCMS (condition A): retention time = 0.29 min; ESI-MS (+) m/z 206.0 ([M+H]+).

References

[1] Patent: WO2016/39749, A1. Location in patent: Page/Page column 190
[1] Patent: , 2016, . Location in patent: Page/Page column 190
[3] Journal of the American Chemical Society, 1955, vol. 77, p. 457,458, 6554, 6555

DL-7-Azatryptophan Monohydrate Preparation Products And Raw materials

Global Suppliers ( 103)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Shanghai Sphchem Co., Ltd. 021-56491756 13512199871 2819742715@qq.com China 3994 55
Beijing HuaMeiHuLiBiological Chemical 010-56205725 waley188@sohu.com China 12323 58
Shanghai Jian Chao Chemical Technology Co., Ltd. 150-2103-5486 18017383231 983544897@qq.com China 9336 55
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
TCI Europe 320-37350700 sales@tcieurope.eu Europe 23654 75
TCI AMERICA 800-4238616 sales@tciamerica.com Americas 23636 75
9ding chemical ( Shanghai) Limited 4009209199 sales@9dingchem.com China 22497 55

DL-7-Azatryptophan Monohydrate Spectrum

2-Amino-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)propanoic acid, 3-(2-Amino-2-carboxyethyl)-1H-pyrrolo[2,3-b]pyridine 2-Amino-3-(1H-pyrrolo[2,3-b]pyridin-3-yl) 3-(2,2-Diaminoethyl)-1H-indole-7-carboxylic acid hydrate DL-7-AZATRYPTOPHAN TIMTEC-BB SBB005480 DL-7-AZATRYPTOPHANE extrapure 7-Aza-DL-tryptophan 1H-Pyrrolo[2,3-b]pyridine-3-alanine Aza-T NSC 19495 DL-7-Azatryptophan hydrochloride 1H-pyrrolo[2,3-b]pyridine (R)-2-aminopropanoate 7-Aza-DL-tryptophan monohydrate DL-7-Azatryptophan Monohydrate 7-AZATRYPTOPHAN 2-Amino-3-(7H-pyrrolo[2,3-b]pyridin-3-yl)propanoic acid DL-Azatryptophan 1H-Pyrrolo[2,3-b]pyridine-3-propanoic acid, a-amino- 2-azaniumyl-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)propanoate DL-7-Azatryptophan Monohydrate> 1H-Pyrrolo[2,3-b]pyridine-3-propanoic acid, α-amino- 7-AZATRYPTOPHAN USP/EP/BP DL-7-AZATRYPTOPHAN MONOHYDRATE SWF-77 DL-7-Azatryptophan Hydrate extrapure, 98% DL-7-AzaTrp-OH 2-Amino-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)-propionic acid 7303-50-6 A - H Modified Amino Acids BioChemical Amino Acids and Peptides Biochemicals and Reagents amino Indole Derivatives A - H Amino Acids Modified Amino Acids Fluorescent Labels & Indicators Amino Acids & Derivatives Amino Acids 13C, 2H, 15N Peptide