# NMR Solvent Peaks > NMR data search tool for identifying chemical impurities. (iPhone/iPad app by Lucas Moore.) - Source: https://appshunter.io/ios/app/nmr-solvent-peaks/id1293462223 (this page in markdown: same URL + `.md`) - Developer: [Lucas Moore](https://appshunter.io/developer/1293462222) - Category: Utilities, Reference - Price: Free - Rating: 5.00/5 from 11 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 15.5 · 1 MB - Languages: American English - Released: 2017-11-03 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/nmr-solvent-peaks/id1293462223/reviews.md ## What is NMR Solvent Peaks? NMR Solvent Peaks is a conveniently-searchable version of the ungainly table of NMR data most organic chemists keep a copy of nearby. Instead of searching through the table for a peak near your unidentified peak, just enter your solvent and the peak's multiplicity and location and you'll have a short list of candidate impurities. NMR Solvent Peaks has support for searching both proton and carbon data, and references the widely-distributed 2010 Organometallics paper by Gregory Fulmer and coworkers and the 2016 OPRD paper by Gregory Whiteker and coworkers. Feature Highlights: - search for impurities based upon mode (proton/carbon), deuterated solvent, multiplicity, and ppm - select "show all" for ppm to see an alphabetical list of all impurities in the app's database - pick a color theme and adjust the user interface handedness ## Key features - Search for impurities by mode, solvent, multiplicity, and ppm - View alphabetical list of all impurities - Adjust user interface handedness - Select color themes - Supports proton and carbon NMR data ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/nmr-solvent-peaks/id1293462223/reviews.md ### 5/5 — Easily the best NMR program for mac *2023-04-24* makes my life very easy ### 5/5 — Great resource *2022-04-30* Clean interface, easy to use. Perfect for use in lab. I just wish there was a reverse lookup function where I could type in a solvent and it would output the peaks. ### 5/5 — Great *2021-02-06* So useful ### 5/5 — Fast, practical and easy to use *2020-05-24* Very straightforward to use with a choice of display settings. At very minimum just choose the solvent and enter the shift in question to inspect the selected array of possible answers. The use peak multiplicity narrows the options further. What’s not to like? ### 5/5 — Easily most handy app for organic chemist *2019-02-21* Quit squinting to read a chemical solvent chart ### 5/5 — Wow *2017-11-15* Easy to use and super handy. No more squinting at a solvent table trying to pick out a number from a forest of other numbers. No more using a straight edge to find me the right column or row. Just input the shift, splitting, and you are solid. 🆒 ## Frequently asked questions about NMR Solvent Peaks ### What is NMR Solvent Peaks used for? NMR Solvent Peaks is a tool for organic chemists to quickly identify potential impurities in their NMR spectra. It allows users to search a database of NMR data based on solvent, peak multiplicity, and ppm values. ### Does NMR Solvent Peaks have ads? No, NMR Solvent Peaks is ad-free. The application does not contain any advertisements, providing an uninterrupted user experience. ### What kind of NMR data does NMR Solvent Peaks support? NMR Solvent Peaks supports searching both proton and carbon NMR data. This comprehensive support allows for a wider range of impurity identification. ### How often is NMR Solvent Peaks updated? The latest version of NMR Solvent Peaks was released on February 7, 2023. While specific update frequency isn't detailed, the app has received updates since its initial release in 2017. ### What devices can I use NMR Solvent Peaks on? NMR Solvent Peaks is available on Mac, iPhone, iPad, and iPod. This broad compatibility ensures accessibility for various users and devices. ### What is the age rating for NMR Solvent Peaks? NMR Solvent Peaks has an age rating of 4+. This indicates it is suitable for a wide audience, including younger users interested in science. ### Where does NMR Solvent Peaks get its data from? NMR Solvent Peaks references data from the 2010 Organometallics paper by Gregory Fulmer and coworkers, and the 2016 OPRD paper by Gregory Whiteker and coworkers. ### Can I customize the appearance of NMR Solvent Peaks? Yes, you can customize the appearance of NMR Solvent Peaks by selecting a color theme and adjusting the user interface handedness to suit your preferences. ## Version history (last 5 releases) ### 3.0 — 2023-02-07 A fresh coat of paint for version 3.0! – redesigned, customizable user interface (nerds: it's all SwiftUI in there!) – supports automatic dark mode switching – re-worked ppm entry – simplified settings screen ### 2.7 — 2022-02-19 New in this version: – Lots of new color options for the theme – Refreshed some old color options, retired some others – Nuts and bolts adjustments under the hood – Now requires iOS 12.4 or newer ### 2.6 — 2022-01-25 New in this version: – added additional impurities (thanks, Olie!) ### 2.5 — 2021-12-23 New in this version: – bug fixes, improvements under the hood ### 2.4 — 2021-12-22 New in this version: – minor user interface adjustments ## Apps similar to NMR Solvent Peaks | App | Rating | Price | Category | | --- | --- | --- | --- | | [OSpectrometer](https://appshunter.io/ios/app/ospectrometer/id6446124449) | 2.0 (4) | Free | Utilities | | [RPN-97 Pro](https://appshunter.io/ios/app/rpn-97-pro/id816249055) | 4.9 (11) | $4.99 | Utilities | | [HorizonFW Companion](https://appshunter.io/ios/app/horizonfw-companion/id1611912826) | 4.7 (40) | Free | Utilities | | [SNAPTAIN FLY](https://appshunter.io/ios/app/snaptain-fly/id1661911666) | 3.2 (30) | Free | Utilities | | [Vibration](https://appshunter.io/ios/app/vibration/id301097580) | 4.4 (9) | $4.99 | Utilities | | [AudioFrequencySignalGenerator](https://appshunter.io/ios/app/audiofrequencysignalgenerator/id1436541708) | 4.2 (11) | Free | Utilities | ## Related topics [nmr solvent peaks](https://appshunter.io/ios/topics/nmr-solvent-peaks) · [1601587 Residual Solvent Class 2 - Formamide (1.2 mL/ampule; 3 ampules)](https://appshunter.io/ios/topics/1601587-residual-solvent-class-2-formamide-1-2-ml-ampule-3-ampules) · [simply 1h nmr tutorial](https://appshunter.io/ios/topics/simply-1h-nmr-tutorial) · [a level nmr](https://appshunter.io/ios/topics/a-level-nmr) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*