Alanine (C3H7NO2) - Multi-Color 3D Molecule Model

Alanine (C3H7NO2) - Multi-Color 3D Molecular Model (Space-Filling Spheres)

An accurate, educational 3D printable model of Alanine (C3H7NO2) in classic Space-Filling (van der Waals / CPK Spheres) style. Ideal for chemistry classrooms, students, researchers, science educators, or as a vibrant desk display.

Printed in a single piece using multi-material systems (Prusa MMU3, Bambu AMS, Toolchangers) — no gluing or assembly required!

Generated with the web tool 3D Print Molecules.

🧪 About the Molecule

Alanine is a foundational non-essential α-amino acid used in the biosynthesis of proteins.

• Chemical Formula: C3H7NO2

• IUPAC / Common Name: Alanine

• Structure Coordinates: pubchem

💡 Did You Know?

Alanine was one of the primary organic building blocks discovered aboard the extraterrestrial Murchison meteorite in 1969, proving that the chemical seeds of life can spontaneously synthesize in deep space!

🌟 Real-World Uses & Fascinating Facts

• 🏋 Pre-Workout Power: Its non-proteinogenic sister isomer, β-alanine, is the world's most popular pre-workout ingredient responsible for the familiar 'tingling' skin sensation and buffering muscle carnosine.

• 🩸 Glucose-Alanine Energy Shuttle: During heavy exercise, muscle tissue converts pyruvate into alanine, shuttling it to the liver to be transformed back into fresh blood glucose.

• 🍬 Natural Flavor Enhancer: Has a distinctly sweet taste and is used as a natural flavor stabilizer in the food industry.

🧠 Biological Role & Science Notes

In human physiology, alanine plays a central role in energy homeostasis. When glycogen stores run low, the glucose-alanine cycle prevents muscular breakdown by facilitating rapid nitrogen transport. Structurally, its compact methyl side chain allows it to integrate seamlessly into tight alpha-helices with minimal steric strain.

🔬 Scientific Precision

• van der Waals Radii: Proportions strictly match standard physical van der Waals radii (Bondi, 1964).

• Conformational Reality: Geometry reflects the lowest-energy real-world conformation derived from computational force fields (MMFF94) and crystallographic/quantum benchmarks.

• CPK Color Standard: Colors follow the classic international Corey-Pauling-Koltun (CPK) palette.

🚀 Why Use the 3D Print Molecules Web App? (3dmolekuly.vscht.cz)

This model was generated using our web visualizer designed to make multi-color 3D printing of molecules seamless:

• 🎯 Automatic Multi-Part Mesh for Multi-Color Printing: No manual cutting or CAD modeling required. The generator automatically isolates each chemical element into separate manifold bodies so PrusaSlicer, Bambu Studio, and OrcaSlicer immediately assign colors!

• 🔬 Authentic Space-Filling Volumes: Generates clean, manifold overlapping sphere volumes reflecting real molecular geometry.

• ⚙ Full Customization: Adjust atom diameters, mesh resolution, scale (mm/Å), and toggle hydrogen atoms on or off.

• 🎓 Free & Web-Based: Developed at the University of Chemistry and Technology, Prague (VŠCHT Praha). Free to use, runs right in your browser with zero installation.

(📸 Check the web app screenshot in the photos to view the model loaded in the visualizer with the settings panel!)

🖨 Multi-Material Printing Instructions

• Style: Space-Filling Spheres (CPK)

• Assembly: None! Printed in one solid piece with multi-material systems.

• Element Color Assignments:

• Carbon (C): Black / Dark Grey

• Hydrogen (H): White

• Oxygen (O): Red

• Nitrogen (N): Blue

• Recommended Layer Height: 0.16 mm (optimal for smooth sphere curves) – 0.20 mm

• Perimeters / Walls: 3

• Infill: 15% Gyroid

• Supports: Tree / Organic supports recommended (use PETG support interface on PLA for 0mm contact distance)

💡 Support Interface Trick for Flawless Spheres

When printing PLA with multi-material units (MMU3, AMS, Toolchanger): Set your Support Interface Material to PETG with Top Z distance = 0 mm. Because PLA and PETG do not bond to each other, the organic/tree supports detach effortlessly by hand with zero surface scarring, leaving the spherical atoms perfectly smooth!

🔗 Customize Your Model or Create Any Molecule!

Need different tolerances for your printer, larger/smaller atoms, or want to export another molecule entirely?

👉 Open and customize directly in the 3D Print Molecules App

Created with ❤ at the University of Chemistry and Technology, Prague (VŠCHT Praha) • 3dmolekuly.vscht.cz