Stanford Root

Schedule

Stanford Root

Schedule

CHEM 121

Understanding the Natural and Unnatural World through Chemistry

UNITS:5
GRADING:Letter or Credit/No Credit
LEVEL:Undergrad
GER:—

Students enrolled in this course will appreciate the transformative power of molecular science on the modern world and how foundational knowledge of chemistry enables profound discoveries in biological, pharmaceutical, agrochemical, engineering, energy, and materials science research. This course integrates the lessons of CHEM 31 and CHEM 33 through an examination of the structure-function properties of carbon-based molecules. Specific emphasis is given to the chemistry of carbonyl- and amine-derived compounds, polyfunctionalized molecules, reaction kinetics and thermodynamics, mechanistic arrow-pushing, and retrosynthetic analysis. Students will be empowered with a conceptual understanding of chemical reactivity, physical organic chemistry, and the logic of chemical synthesis. The singular nature of molecular design and synthesis to make available functional molecules and materials will be revealed. A three-hour lab section provides hands on experience with modern chemical methods for preparative and analytical chemistry. Prerequisite CHEM 33 or co-requisite CHEM 100.

Syllabus for selected term:
View Autumn 2026 Syllabus

Sections

2 Terms
Lecture 1Open
ID: 6756
0 / 159 enrolled
DAYS:Monday, Wednesday, Friday
TIME:11:30 AM – 12:20 PM
LOCATION:STLC 114
INSTRUCTOR:
Brennan, Megan, Kool, Eric
5units
Lecture 2Open
ID: 7031
0 / 155 enrolled
DAYS:Monday, Wednesday, Friday
TIME:1:30 PM – 2:20 PM
LOCATION:STLC 114
INSTRUCTOR:
Brennan, Megan, Kool, Eric
5units
Lab Section 1Open
ID: 6957
0 / 12 enrolled
DAYS:Wednesday
TIME:12:30 PM – 3:20 PM
LOCATION:SAPP 304
5units
Lab Section 2Open
ID: 6958
0 / 12 enrolled
DAYS:Wednesday
TIME:12:30 PM – 3:20 PM
LOCATION:SAPP 306
5units
Lab Section 3Closed
ID: 6939
DAYS:Wednesday
TIME:12:30 PM – 3:20 PM
LOCATION:SAPP 312
5units
Lab Section 4Open
ID: 6940
0 / 12 enrolled
DAYS:Wednesday
TIME:12:30 PM – 3:20 PM
LOCATION:SAPP 318
5units
Lab Section 5Open
ID: 6941
0 / 12 enrolled
DAYS:Wednesday
TIME:3:30 PM – 6:20 PM
LOCATION:SAPP 304
5units
Lab Section 6Open
ID: 6942
0 / 12 enrolled
DAYS:Wednesday
TIME:3:30 PM – 6:20 PM
LOCATION:SAPP 306
5units
Lab Section 7Open
ID: 6943
0 / 12 enrolled
DAYS:Wednesday
TIME:3:30 PM – 6:20 PM
LOCATION:SAPP 312
5units
Lab Section 8Open
ID: 6944
0 / 12 enrolled
DAYS:Wednesday
TIME:3:30 PM – 6:20 PM
LOCATION:SAPP 318
5units
Lab Section 9Open
ID: 6945
0 / 12 enrolled
DAYS:Thursday
TIME:8:30 AM – 11:20 AM
LOCATION:SAPP 304
5units
Lab Section 10Open
ID: 6946
0 / 12 enrolled
DAYS:Thursday
TIME:8:30 AM – 11:20 AM
LOCATION:SAPP 306
5units
Lab Section 11Open
ID: 6947
0 / 12 enrolled
DAYS:Thursday
TIME:8:30 AM – 11:20 AM
LOCATION:SAPP 312
5units
Lab Section 12Open
ID: 6948
0 / 12 enrolled
DAYS:Thursday
TIME:8:30 AM – 11:20 AM
LOCATION:SAPP 318
5units
Lab Section 13Open
ID: 6949
0 / 12 enrolled
DAYS:Thursday
TIME:12 PM – 2:50 PM
LOCATION:SAPP 304
5units
Lab Section 14Open
ID: 6950
0 / 12 enrolled
DAYS:Thursday
TIME:12 PM – 2:50 PM
LOCATION:SAPP 306
5units
Lab Section 15Open
ID: 6951
0 / 12 enrolled
DAYS:Thursday
TIME:12 PM – 2:50 PM
LOCATION:SAPP 312
5units
Lab Section 16Open
ID: 6952
0 / 12 enrolled
DAYS:Thursday
TIME:12 PM – 2:50 PM
LOCATION:SAPP 318
5units
Lab Section 17Open
ID: 6953
0 / 12 enrolled
DAYS:Thursday
TIME:3 PM – 5:50 PM
LOCATION:SAPP 304
5units
Lab Section 18Open
ID: 6954
0 / 12 enrolled
DAYS:Thursday
TIME:3 PM – 5:50 PM
LOCATION:SAPP 306
5units
Lab Section 19Open
ID: 6955
0 / 12 enrolled
DAYS:Thursday
TIME:3 PM – 5:50 PM
LOCATION:SAPP 312
5units
Lab Section 20Open
ID: 6956
0 / 12 enrolled
DAYS:Thursday
TIME:3 PM – 5:50 PM
LOCATION:SAPP 318
5units

CHEM 121: Understanding the Natural and Unnatural World through Chemistry

5 units · Letter or Credit/No Credit

Students enrolled in this course will appreciate the transformative power of molecular science on the modern world and how foundational knowledge of chemistry enables profound discoveries in biological, pharmaceutical, agrochemical, engineering, energy, and materials science research. This course integrates the lessons of CHEM 31 and CHEM 33 through an examination of the structure-function properties of carbon-based molecules. Specific emphasis is given to the chemistry of carbonyl- and amine-derived compounds, polyfunctionalized molecules, reaction kinetics and thermodynamics, mechanistic arrow-pushing, and retrosynthetic analysis. Students will be empowered with a conceptual understanding of chemical reactivity, physical organic chemistry, and the logic of chemical synthesis. The singular nature of molecular design and synthesis to make available functional molecules and materials will be revealed. A three-hour lab section provides hands on experience with modern chemical methods for preparative and analytical chemistry. Prerequisite CHEM 33 or co-requisite CHEM 100.

Offered in Autumn 2026, Spring 2027 at Stanford University.

Autumn 2026 sections

  • Lab Section — Wednesday 3:30 PM – 6:20 PM — SAPP 318 (Undergrad)
  • Lab Section — Wednesday 3:30 PM – 6:20 PM — SAPP 306 (Undergrad)
  • Lab Section — Wednesday 3:30 PM – 6:20 PM — SAPP 312 (Undergrad)
  • Lab Section — Wednesday 12:30 PM – 3:20 PM — SAPP 304 (Undergrad)
  • Lab Section — Wednesday 3:30 PM – 6:20 PM — SAPP 304 (Undergrad)
  • Lab Section — Wednesday 12:30 PM – 3:20 PM — SAPP 318 (Undergrad)
  • Lab Section — Wednesday 12:30 PM – 3:20 PM — SAPP 312 (Undergrad)
  • Lab Section — Wednesday 12:30 PM – 3:20 PM — SAPP 306 (Undergrad)
  • Lab Section — Thursday 8:30 AM – 11:20 AM — SAPP 312 (Undergrad)
  • Lab Section — Thursday 8:30 AM – 11:20 AM — SAPP 306 (Undergrad)
  • Lab Section — Thursday 12:00 PM – 2:50 PM — SAPP 304 (Undergrad)
  • Lab Section — Thursday 8:30 AM – 11:20 AM — SAPP 318 (Undergrad)
  • Lab Section — Thursday 8:30 AM – 11:20 AM — SAPP 304 (Undergrad)
  • Lab Section — Thursday 3:00 PM – 5:50 PM — SAPP 318 (Undergrad)
  • Lab Section — Thursday 3:00 PM – 5:50 PM — SAPP 306 (Undergrad)
  • Lab Section — Thursday 3:00 PM – 5:50 PM — SAPP 312 (Undergrad)
  • Lab Section — Thursday 12:00 PM – 2:50 PM — SAPP 318 (Undergrad)
  • Lab Section — Thursday 3:00 PM – 5:50 PM — SAPP 304 (Undergrad)
  • Lab Section — Thursday 12:00 PM – 2:50 PM — SAPP 306 (Undergrad)
  • Lab Section — Thursday 12:00 PM – 2:50 PM — SAPP 312 (Undergrad)
  • Lecture — Monday Wednesday Friday 1:30 PM – 2:20 PM — STLC 114 — Brennan, Megan, Kool, Eric (Undergrad)
  • Lecture — Monday Wednesday Friday 11:30 AM – 12:20 PM — STLC 114 — Brennan, Megan, Kool, Eric (Undergrad)

Spring 2027 sections

  • Lab Section — Tuesday 12:00 PM – 2:50 PM — Mendez, Hugo (Undergrad)
  • Lab Section — Tuesday 12:00 PM – 2:50 PM (Undergrad)
  • Lab Section — Tuesday 12:00 PM – 2:50 PM (Undergrad)
  • Lab Section — Tuesday 3:00 PM – 5:50 PM — Mendez, Hugo (Undergrad)
  • Lab Section — Tuesday 12:00 PM – 2:50 PM — Wehbeh, Daniel (Undergrad)
  • Lab Section — Tuesday 3:00 PM – 5:50 PM (Undergrad)
  • Lab Section — Tuesday 3:00 PM – 5:50 PM (Undergrad)
  • Lecture — Monday Wednesday Friday 9:30 AM – 10:20 AM — Kanan, Matthew, Wu, Yilei, Narkhede, Pradnya (Undergrad)
  • Lab Section — Monday 3:00 PM – 5:50 PM (Undergrad)
  • Lab Section — Tuesday 8:30 AM – 11:20 AM — Wehbeh, Daniel (Undergrad)
  • Lab Section — Monday 3:00 PM – 5:50 PM — Lee, Sophia (Undergrad)
  • Lab Section — Monday 3:00 PM – 5:50 PM (Undergrad)
  • Lab Section — Monday 12:00 PM – 2:50 PM (Undergrad)
  • Lab Section — Monday 3:00 PM – 5:50 PM — Reddy, Shriya (Undergrad)
  • Lab Section — Monday 12:00 PM – 2:50 PM — Lee, Sophia (Undergrad)
  • Lab Section — Monday 12:00 PM – 2:50 PM (Undergrad)
  • Lab Section — Tuesday 8:30 AM – 11:20 AM (Undergrad)
  • Lab Section — Tuesday 8:30 AM – 11:20 AM (Undergrad)
  • Lab Section — Tuesday 8:30 AM – 11:20 AM (Undergrad)
  • Lab Section — Monday 12:00 PM – 2:50 PM — Reddy, Shriya (Undergrad)

More CHEM courses

  • CHEM 31S: STEMentors in Chemistry
  • CHEM 33: Structure and Reactivity of Carbon-Based Molecules
  • CHEM 90: Directed Instruction/Reading
  • CHEM 91: Exploring Chemical Research at Stanford
  • CHEM 93: Chemistry Unleashed: Exploring the Chemistry that Transforms Our World
  • CHEM 100: Chemical Laboratory and Safety Skills
  • CHEM 123: Organic Polyfunctional Compounds
  • CHEM 124: Organic Chemistry Laboratory
  • CHEM 126: Synthesis Laboratory
  • CHEM 131: Instrumental Analysis Principles and Practice
  • CHEM 141: The Chemical Principles of Life I
  • CHEM 142: Biochemistry Lab

All CHEM courses · All departments