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RC 161

Also known as L-Threoninamide, N-acetyl-D-phenylalanyl-L-cysteinyl-L-tyrosyl-D-tryptophyl-L-lysyl-L-valyl-L-cysteinyl-, cyclic (2-7)-disulfide

CAS 103237-51-0Formula C52H69N11O11S2Molar mass 1,088.32 g/mol
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RC 161 chemical structure, C52H69N11O11S2, CAS 103237-51-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
103237-51-0
Formula
C52H69N11O11S2
Molar mass
1,088.32 g/mol
HS code
293499
Category
Peptides

What is RC 161?

Plain description, key identifiers and synonyms

RC 161 is a chemical substance with the molecular formula C52H69N11O11S2 and a molar mass of 1,088.32 g/mol. Its CAS registry number is 103237-51-0. The IUPAC name is 19-[(2-acetamido-3-phenylpropanoyl)amino]-10-(4-aminobutyl)-N-(1-amino-3-hydroxy-1-oxobutan-2-yl)-16-[(4-hydroxyphenyl)methyl]-13-(1H-indol-3-ylmethyl)-6,9,12,15,18-pentaoxo-7-propan-2-yl-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carboxamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
19-[(2-acetamido-3-phenylpropanoyl)amino]-10-(4-aminobutyl)-N-(1-amino-3-hydroxy-1-oxobutan-2-yl)-16-[(4-hydroxyphenyl)methyl]-13-(1H-indol-3-ylmethyl)-6,9,12,15,18-pentaoxo-7-propan-2-yl-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carboxamide
CAS number
103237-51-0
Molecular formula
C52H69N11O11S2
InChIKey
RDQAXLBMDMKOLS-UHFFFAOYSA-N
InChI
InChI=1S/C52H69N11O11S2/c1-28(2)43-52(74)61-42(51(73)63-44(29(3)64)45(54)67)27-76-75-26-41(60-47(69)38(56-30(4)65)22-31-12-6-5-7-13-31)50(72)58-39(23-32-17-19-34(66)20-18-32)48(70)59-40(24-33-25-55-36-15-9-8-14-35(33)36)49(71)57-37(46(68)62-43)16-10-11-21-53/h5-9,12-15,17-20,25,28-29,37-44,55,64,66H,10-11,16,21-24,26-27,53H2,1-4H3,(H2,54,67)(H,56,65)(H,57,71)(H,58,72)(H,59,70)(H,60,69)(H,61,74)(H,62,68)(H,63,73)
SMILES (canonical and isomeric)
CC(C)C1C(=O)NC(CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N1)CCCCN)CC2=CNC3=CC=CC=C32)CC4=CC=C(C=C4)O)NC(=O)C(CC5=CC=CC=C5)NC(=O)C)C(=O)NC(C(C)O)C(=O)N

Synonyms

  • L-Threoninamide, N-acetyl-D-phenylalanyl-L-cysteinyl-L-tyrosyl-D-tryptophyl-L-lysyl-L-valyl-L-cysteinyl-, cyclic (2-7)-disulfide

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
1,088.32 g/molcalc.
Exact mass
1,087.4619 Dacalc.
LogP (octanol/water)
-0.15calc.
Topological polar surface area
358.2 Ųcalc.
Hydrogen bond donors
13calc.
Hydrogen bond acceptors
14calc.
Rotatable bonds
18calc.
Heavy atoms
76calc.
Rings
5calc.
Aromatic rings
4calc.
Fraction sp3 carbons
0.44calc.
Formal charge
0calc.
Stereocentres
9calc.
Lipinski rule of five
Fails (3 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=C1CNC(=O)CNC(=O)C(Cc2c[nH]c3ccccc23)NC(=O)C(Cc2ccccc2)NC(=O)C(NC(=O)CCc2ccccc2)CSSCCN1

O=C1CNC(=O)CNC(=O)C(Cc2c[nH]c3ccccc23)NC(=O)C(Cc2ccccc2)NC(=O)C(NC(=O)CCc2ccccc2)CSSCCN1

5 rings, 53 atoms.

42 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.

RC 161 suppliers

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RC 161 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 RC 161 is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for RC 161 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about RC 161, based on the data on this page

What is RC 161?

RC 161 is a chemical substance with the molecular formula C52H69N11O11S2 and a molar mass of 1,088.32 g/mol. Its CAS registry number is 103237-51-0.

What is the CAS number of RC 161?

The CAS registry number of RC 161 is 103237-51-0.

What is the molecular formula and weight of RC 161?

The molecular formula of RC 161 is C52H69N11O11S2 and its molar mass is 1,088.32 g/mol.

Is RC 161 hazardous?

No GHS hazard classification for RC 161 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 RC 161?

RC 161 is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy RC 161?

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What is the price of RC 161?

Suppliers quote RC 161 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 RC 161

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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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