H 261

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 597335

CAS#: 91464-97-0

Description: H 261 is an oligopeptide.


Chemical Structure

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H 261
CAS# 91464-97-0

Theoretical Analysis

MedKoo Cat#: 597335
Name: H 261
CAS#: 91464-97-0
Chemical Formula: C50H73N13O9
Exact Mass: 999.5654
Molecular Weight: 1000.21
Elemental Analysis: C, 60.04; H, 7.36; N, 18.21; O, 14.40

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
Note: Price will be listed if it is available in the future.

Request quote for custom synthesis

Synonym: H 261; H-261; H261; H 261 Oligopeptide; H-261 Oligopeptide;

IUPAC/Chemical Name: ((2S,3R,4S)-2-(N-(L-histidyl-L-prolyl-L-phenylalanyl-L-histidyl)-7-methyloctanamido)-5-amino-4-hydroxy-2-isopropyl-3-methylpentanoyl)-L-histidine

InChi Key: XHLXGLKEBULHLR-ZLAHSOKESA-N

InChi Code: InChI=1S/C50H73N13O9/c1-30(2)13-8-6-11-17-43(65)63(50(31(3)4,32(5)42(64)23-51)49(72)61-40(48(70)71)22-36-26-55-29-58-36)47(69)39(21-35-25-54-28-57-35)60-44(66)38(19-33-14-9-7-10-15-33)59-45(67)41-16-12-18-62(41)46(68)37(52)20-34-24-53-27-56-34/h7,9-10,14-15,24-32,37-42,64H,6,8,11-13,16-23,51-52H2,1-5H3,(H,53,56)(H,54,57)(H,55,58)(H,59,67)(H,60,66)(H,61,72)(H,70,71)/t32-,37-,38-,39-,40-,41-,42+,50-/m0/s1

SMILES Code: O=C(O)[C@H](CC1=CNC=N1)NC([C@@]([C@@H](C)[C@H](O)CN)(C(C)C)N(C([C@H](CC2=CNC=N2)NC([C@H](CC3=CC=CC=C3)NC([C@H]4N(C([C@H](CC5=CNC=N5)N)=O)CCC4)=O)=O)=O)C(CCCCCC(C)C)=O)=O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 1000.21 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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