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Dalargin

Also known as Enkephalin-leu, ala(2)-arg(6)-, 2-Ala-6-Arg-Leu-enkephalin, 1-6-beta-Neoendorphin (human), 2-D-alanine-

CAS 81733-79-1Formula C35H51N9O8Molar mass 725.85 g/mol
2 suppliers listed
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Dalargin chemical structure, C35H51N9O8, CAS 81733-79-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
81733-79-1
Formula
C35H51N9O8
Molar mass
725.85 g/mol
HS code
292529
Category
Peptides

What is Dalargin?

Plain description, key identifiers and synonyms

Dalargin is a chemical substance with the molecular formula C35H51N9O8 and a molar mass of 725.85 g/mol. Its CAS registry number is 81733-79-1. The IUPAC name is (2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2R)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2R)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid
CAS number
81733-79-1 CAS number cross-checked
Molecular formula
C35H51N9O8
UNII
V13505565P
InChIKey
GDPHPXYFLPDZGH-XBTMSFKCSA-N
InChI
InChI=1S/C35H51N9O8/c1-20(2)16-27(32(49)43-26(34(51)52)10-7-15-39-35(37)38)44-33(50)28(18-22-8-5-4-6-9-22)42-29(46)19-40-30(47)21(3)41-31(48)25(36)17-23-11-13-24(45)14-12-23/h4-6,8-9,11-14,20-21,25-28,45H,7,10,15-19,36H2,1-3H3,(H,40,47)(H,41,48)(H,42,46)(H,43,49)(H,44,50)(H,51,52)(H4,37,38,39)/t21-,25+,26+,27+,28+/m1/s1
Canonical SMILES
CC(C)CC(NC(=O)C(Cc1ccccc1)NC(=O)CNC(=O)C(C)NC(=O)C(N)Cc1ccc(O)cc1)C(=O)NC(CCCN=C(N)N)C(=O)O
Isomeric SMILES
C[C@H](C(=O)NCC(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)O)NC(=O)[C@H](CC2=CC=C(C=C2)O)N

Synonyms

  • Enkephalin-leu, ala(2)-arg(6)-
  • 2-Ala-6-Arg-Leu-enkephalin
  • 1-6-beta-Neoendorphin (human), 2-D-alanine-
  • Tyr-Ala-Gly-Phe-Leu-Arg
  • Leu-enkephalin, Ala(2)-Arg(6)-
  • leucine-enkephalin, Ala(2)-Arg(6)-
  • enkephalin, Ala(2)-Leu(5)-Arg(6)-
  • enkephalin-Leu, alanyl(2)-arginine(6)-
  • tyrosyl-alanyl-glycyl-phenylalanyl--leucyl-arginine
  • (D-Ala2)-Leu-Enkephalin-Arg
  • Tyr-D-Ala-Gly-Phe-Leu-Arg
  • tageflar
  • (D-Ala2)-leucine enkephalin-arg
  • Tyrosyl-D-alanyl-glycyl-phenylalanyl-leucyl-arginine
  • Dalargine
  • (D-Ala2)-Leu-Enkephalin-Arg acetate salt
  • 2-D-Alanine-1-6-beta-neoendorphin (human)
  • 1-6-(D-Ala2)-dynorphin
  • N(sup 2)-(N-(N-(N-(L-Tyrosyl-D-alanyl)glycyl)-L-phenylalanyl)-L-leucyl)-L-arginine
  • L-tyrosyl-D-alanylglycyl-L-phenylalanyl-L-leucyl-L-arginine
  • L-Arginine, L-tyrosyl-d-alanylglycyl-l-phenylalanyl-l-leucyl-
  • L-Arginine, N(sup 2)-(N-(N-(N-(L-tyrosyl-D-alanyl)glycyl)-L-phenylalanyl)-L-leucyl)-
  • L-Tyrosyl-D-alanylglycyl-L-phenylalanyl-L-leucyl-N~5~-(diaminomethylidene)-L-ornithine

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
725.85 g/molcalc.
Exact mass
725.3861 Dacalc.
LogP (octanol/water)
-1.24calc.
Topological polar surface area
293.5 Ųcalc.
Hydrogen bond donors
10calc.
Hydrogen bond acceptors
9calc.
Rotatable bonds
21calc.
Heavy atoms
52calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.46calc.
Formal charge
0calc.
Stereocentres
5calc.
Lipinski rule of five
Fails (2 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C(CCc1ccccc1)NCC(=O)NCC(=O)NCCc1ccccc1

O=C(CCc1ccccc1)NCC(=O)NCC(=O)NCCc1ccccc1

2 rings, 27 atoms.

297 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Dalargin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 2 suppliers

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Where suppliers are based

2 suppliers in 1 country

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Dalargin price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Adjuvants, Immunologic
  • Analgesics
  • Anti-Arrhythmia Agents
  • Anti-Inflammatory Agents, Non-Steroidal
  • Anti-Ulcer Agents
  • Antioxidants
  • Gastrointestinal Agents
  • Sympatholytics

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dalargin is traded under.

HS 2925.29Indicative HS code

Imines and their derivatives, salts thereof, other

World exports in 2024
$1.8B
+12.4% vs 2023, imports $1.84B
2019 to 2024
Top exporters
  1. China35.9%
  2. France * partner reported15.5%
  3. Germany9.1%
Top importers
  1. United States13.3%
  2. China13.0%
  3. Brazil9.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Dalargin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dalargin, based on the data on this page

What is Dalargin?

Dalargin is a chemical substance with the molecular formula C35H51N9O8 and a molar mass of 725.85 g/mol. Its CAS registry number is 81733-79-1.

What is the CAS number of Dalargin?

The CAS registry number of Dalargin is 81733-79-1.

What is the molecular formula and weight of Dalargin?

The molecular formula of Dalargin is C35H51N9O8 and its molar mass is 725.85 g/mol.

What is Dalargin used for?

Known uses and roles of Dalargin include adjuvants, immunologic, analgesics, anti-arrhythmia agents, anti-inflammatory agents, non-steroidal, anti-ulcer agents and 3 more.

Is Dalargin hazardous?

No GHS hazard classification for Dalargin is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Dalargin?

Dalargin is usually classified under HS code 292529 (Imines and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dalargin?

CompoundList lists 2 suppliers of Dalargin in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dalargin?

Suppliers quote Dalargin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Dalargin

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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