Chemical Structures Starting with the Letter R

By
Anne Marie Helmenstine, Ph.D.
Anne Marie Helmenstine, Ph.D.
Chemistry Expert
  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
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Updated on November 05, 2019
01
of 27

Retinol - Vitamin A Chemical Structure

This is the chemical structure of retinol or vitamin A. Todd Helmenstine

Browse structures of molecules and ions that have names beginning with the letter R.

The molecular formula for retinol or vitamin A is C20H30O.

02
of 27

Rheadan Chemical Structure

This is the chemical structure of rheadan. Todd Helmenstine

The molecular formula for rheadan is C17H17NO.

03
of 27

Riboflavin - Vitamin B2 Chemical Structure

This is the chemical structure of riboflavin, also known as vitamin B2.
This is the chemical structure of riboflavin, also known as vitamin B2. Todd Helmenstine

The molecular formula for riboflavin or vitamin B2 is C17H20N4O6.

04
of 27

Ribose Chemical Structure

This is the chemical structure of ribose.
This is the chemical structure of ribose. Todd Helmenstine

The molecular formula for ribose is C5H10O5.

05
of 27

Ricin

Ricin is made of two protein chains linked by a disulfide bond.
Ricin is made of two protein chains linked by a disulfide bond. The A chain (blue) is an N-glycoside hydrolase that inhibits protein synthesis. The B chain (orange) is a lectin that helps ricin bind to a cell. AzaToth, Wikipedia Commons
06
of 27

Rodiasine Chemical Structure

This is the chemical structure of rodiasine. Todd Helmenstine

The molecular formula for rodiasine is C38H42N2O6.

07
of 27

Rosane Chemical Structure

This is the chemical structure of rosane. Todd Helmenstine

The molecular formula for rosane is C20H36.

08
of 27

Ritalin or Methylphenidate Chemical Structure

Methylphenidate (MPH) is methyl 2-phenyl-2-(2-piperidyl)acetate.
Methylphenidate (MPH) is methyl 2-phenyl-2-(2-piperidyl)acetate. Brand names of methyphenidate incllude methylphenidate include Ritalin, Concerta, Metadate, Methylin, and Focalin. It is a prescription stimulant used to treat ADHD and drowsiness. Jesin, Wikipedia Commons

The molecular formula for methylphenidate is C14H19NO2.

09
of 27

Rohypnol - Flunitrazepam Chemical Structure

This is the chemical structure of flunitrazepam.
This is the chemical structure of flunitrazepam. Todd Helmenstine

The molecular formula for rohypnol or flunitrazepam is C16H12FN3O3.

10
of 27

Raffinose Chemical Structure

This is the chemical structure of raffinose.
This is the chemical structure of raffinose. Mackensteff/PD

The molecular formula for raffinose is C18H32O16.

11
of 27

Resorcinol Chemical Structure

This is the chemical structure of resorcinol.
This is the chemical structure of resorcinol. Fvasconcellos/PD

The molecular formula for resorcinol is C6H6O2.

12
of 27

Retinal Chemical Structure

This is the chemical structure of retinal.
This is the chemical structure of retinal. NEUROtiker/PD

The molecular formula for retinal, also known as vitamin A aldehyde or retinaldehyde is C20H28O.

13
of 27

Retinoic Acid Chemical Structure

This is the chemical structure of retinoic acid.
This is the chemical structure of retinoic acid. NEUROtiker/PD

The molecular formula for retinoic acid is C20H28O2.

14
of 27

Rhodanine Chemical Structure

This is the chemical structure of rhodanine.
This is the chemical structure of rhodanine. Dr.T/PD

The molecular formula for rhodanine is C3H3NOS2.

15
of 27

Rhodamine 123 Chemical Structure

This is the chemical structure of rhodamine 123.
This is the chemical structure of rhodamine 123. Yikrazuul/PD

The molecular formula for rhodamine 123 is C21H17ClN2O3.

16
of 27

Rhodamine 6G Chemical Structure

This is the chemical structure of rhodamine 6G.
This is the chemical structure of rhodamine 6G. Todd Helmenstine

The molecular formula for rhodamine 6G is C28H31N2O3Cl.

17
of 27

Rhodamine B Chemical Structure

This is the chemical structure of rhodamine B.
This is the chemical structure of rhodamine B. Todd Helmenstine

The molecular formula for rhodamine B is C28H31ClN2O3.

18
of 27

D-Ribofuranose Chemical Structure

This is the chemical structure of D-ribofuranose.
This is the chemical structure of D-ribofuranose. Todd Helmenstine

The molecular formula for D-ribofuranose is C5H10O5.

19
of 27

Ribofuranose Chemical Structure

This is the chemical structure of ribofuranose.
This is the chemical structure of ribofuranose. Todd Helmenstine

The molecular formula for ribofuranose is C5H10O5.

20
of 27

L-Ribofuranose Chemical Structure

This is the chemical structure of L-ribofuranose.
This is the chemical structure of L-ribofuranose. Todd Helmenstine

The molecular formula for L-ribofuranose is C5H10O5.

21
of 27

Rosolic Acid - Aurin Chemical Structure

This is the chemical structure of aurin.
This is the chemical structure of aurin. DMacks/PD

The molecular formula for aurin is C19H14O3.

22
of 27

Rotenone Chemical Structure

This is the chemical structure of rotenone.
This is the chemical structure of rotenone. Edgar181/PD

The molecular formula for rotenone is C23H22O6.

23
of 27

Resveratrol Chemical Structure

This is the chemical structure for resveratrol.
This is the chemical structure for resveratrol, a phytoalexin that is produced by several plants and is being investigated for potential anti-aging properties in humans and animals. Fvasconcellos, public domain
24
of 27

Relenza Chemical Structure

This is the chemical structure of zanamivir.
This is the chemical structure of zanamivir. Todd Helmenstine

Relenza is a neuraminidase inhibitor marketed by GlaxoSmithKline used to treat influenza virus infections. The chemical name for Relenza is zanamivir. The molecular formula for zanamivir is C12H20N4O7.

25
of 27

RuBisCO Structure

This is a space-filling model of RuBisCO or ribulose bisphosphate carboxylase.
This is a space-filling model of RuBisCO or ribulose bisphosphate carboxylase, an important enzyme in carbon dioxide fixation. ARP, public domain
26
of 27

Resiniferatoxin Structure

This is the chemical structure of resiniferatoxin.
This is the chemical structure of resiniferatoxin, one of the hottest (spicy) chemicals known to man. Charlesy, public domain
27
of 27

Rosuvastatin or Crestor

This is the chemical structure for the statin drug rosuvastatin or Crestor.
This is the chemical structure for the statin drug rosuvastatin or Crestor, which is used to treat high cholesterol and help prevent cardiovascular disease. public domain

The IUPAC name for rosuvastatin is (3R,5S,6E)-7-[4-(4-fluorophenyl)-2-(N-methylmethanesulfonamido)-6-(propan-2-yl)pyrimidin-5-yl]-3,5-dihydroxyhept-6-enoic acid. Its chemical formula is C22H28FN3O6S.

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Helmenstine, Anne Marie, Ph.D. "Chemical Structures Starting with the Letter R." ThoughtCo, Aug. 27, 2020, thoughtco.com/chemical-structures-starting-with-the-letter-r-4071307. Helmenstine, Anne Marie, Ph.D. (2020, August 27). Chemical Structures Starting with the Letter R. Retrieved from https://www.thoughtco.com/chemical-structures-starting-with-the-letter-r-4071307 Helmenstine, Anne Marie, Ph.D. "Chemical Structures Starting with the Letter R." ThoughtCo. https://www.thoughtco.com/chemical-structures-starting-with-the-letter-r-4071307 (accessed June 9, 2023).