2. Metabolic Enzyme/Protease
  3. Amylases
  4. Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside  (Synonyms: pNP-G7)

Cat. No.: HY-112835 Purity: 99.42%
COA Handling Instructions

Molarity Calculator

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside (pNP-G7) is the substrate of α-amylase. Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside can be used to measure a-amylase activity.

For research use only. We do not sell to patients.

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside Chemical Structure

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside Chemical Structure

CAS No. : 96597-16-9

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Based on 1 publication(s) in Google Scholar

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside Related Antibodies

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  • Biological Activity

  • Purity & Documentation

  • References

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Description

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside (pNP-G7) is the substrate of α-amylase. Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside can be used to measure a-amylase activity[1].

Molecular Weight

1300.13

Formula

C50H77NO38
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O[C@H]1[C@@H](O[C@@H]2[C@@H](CO)O[C@H](O[C@@H]3[C@@H](CO)O[C@H](O[C@@H]4[C@@H](CO)O[C@H](O[C@@H]5[C@@H](CO)O[C@H](O[C@@H]6[C@@H](CO)O[C@H](O[C@@H]7[C@@H](CO)O[C@H](OC8=CC=C([N+]([O-])=O)C=C8)[C@H](O)[C@H]7O)[C@H](O)[C@H]6O)[C@H](O)[C@H]5O)[C@H](O)[C@H]4O)[C@H](O)[C@H]3O)[C@H](O)[C@H]2O)O[C@H]9[C@@H](OC(C)OC9)[C@@H]1O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (76.92 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.7692 mL 3.8458 mL 7.6915 mL
5 mM 0.1538 mL 0.7692 mL 1.5383 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (1.92 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (1.92 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.42%

COA (257 KB) RP-HPLC (246 KB) LCMS (87 KB)

Handling Instructions (2659 KB)
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 0.7692 mL 3.8458 mL 7.6915 mL 19.2288 mL
5 mM 0.1538 mL 0.7692 mL 1.5383 mL 3.8458 mL
10 mM 0.0769 mL 0.3846 mL 0.7692 mL 1.9229 mL
15 mM 0.0513 mL 0.2564 mL 0.5128 mL 1.2819 mL
20 mM 0.0385 mL 0.1923 mL 0.3846 mL 0.9614 mL
25 mM 0.0308 mL 0.1538 mL 0.3077 mL 0.7692 mL
30 mM 0.0256 mL 0.1282 mL 0.2564 mL 0.6410 mL
40 mM 0.0192 mL 0.0961 mL 0.1923 mL 0.4807 mL
50 mM 0.0154 mL 0.0769 mL 0.1538 mL 0.3846 mL
60 mM 0.0128 mL 0.0641 mL 0.1282 mL 0.3205 mL
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Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside96597-16-9pNP-G7AmylasesInhibitorinhibitorinhibit

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