# LMLipidCalc1

> Calculates lipid molecular weights and m/z for mass spectrometry in lipidomics research. (iPhone/iPad app by Robert Murphy.)

- Source: https://appshunter.io/ios/app/lmlipidcalc1/id1545236877 (this page in markdown: same URL + `.md`)
- Developer: [Robert Murphy](https://appshunter.io/developer/1533486306)
- Category: Education, Reference
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 9 MB
- Languages: English
- Released: 2020-12-21
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/lmlipidcalc1/id1545236877/reviews.md

## What is LMLipidCalc1?

This application provided by LIPIDMAPS can be used to support lipid biochemists in their lipidomic investigations when electrospray ionization mass spectrometry is employed. LipidCalc can calculate the accurate mono-isotopic molecular weight of tens of thousands lipid molecular species as well as positive and negative molecular ions and several molecular ion adducts.

Fourteen (14) different lipid classes and subclasses can be chosen for precise m/z calculation. For those lipids containing fatty acyl groups (phospholipids, sphingolipids, cholesteryl esters, acyl CoA esters, wax esters, acyl carnitines, cardiolipins, and glycerides) a drop-down menu is provided from which one can select up to 30 different acyl groups to build the lipid class structure. The dropdown table of fatty acyl groups is ordered in biochemical frequency. The exact mono-isotopic molecular weight is calculated, and a table of common positive and negative molecular ion species can be viewed. The m/z is calculated at millimass unit accuracy. The ions are calculated either as [M+H]+, [M-H]-, or common ion adducts with alkali metals or organic acid anion adducts. Fatty acids and fatty acid lipid mediators such as prostaglandins and leukotrienes are also included along with common lipid mediator metabolites.

For those lipids, such as steroids and sterols which are unique molecular species, over 28 examples are provided which can also be view as monoisotopic molecular weight, positive or negative ions. The four common bile acids can be calculated either as glycine or taurine conjugates, or as free bile acid. Several uncommon lipids such as dolichols, prenols, and lipid soluble vitamins such as vitamin A, D3, E, K, as well as coenzyme Q are included. The largest number of molecular species is derived for cardiolipins which include four acyl groups for which over 50,000 individual molecular species are theoretically possible.

## Key features

- Calculate mono-isotopic molecular weight
- Support for positive and negative molecular ions
- Calculate common ion adducts
- Support for 14 lipid classes and subclasses
- Select up to 30 acyl groups
- Includes fatty acids, prostaglandins, and leukotrienes
- Calculates steroids, sterols, and bile acids

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/lmlipidcalc1/id1545236877/reviews.md

### 5/5 — lipids

*2023-06-19*

!!

## Frequently asked questions about LMLipidCalc1

### What is LMLipidCalc1 used for?

LMLipidCalc1 is used to support lipid biochemists in their lipidomic investigations. It calculates the accurate mono-isotopic molecular weight of tens of thousands of lipid molecular species, as well as positive and negative molecular ions and common ion adducts.

### What lipid classes can LMLipidCalc1 calculate?

LMLipidCalc1 supports fourteen different lipid classes and subclasses for precise m/z calculation. This includes phospholipids, sphingolipids, cholesteryl esters, acyl CoA esters, wax esters, acyl carnitines, cardiolipins, and glycerides.

### Does LMLipidCalc1 support custom lipid structures?

Yes, for lipids containing fatty acyl groups, you can select up to 30 different acyl groups from a dropdown menu to build the lipid class structure. This allows for precise calculation of complex lipid species.

### What types of ions can LMLipidCalc1 calculate?

LMLipidCalc1 can calculate ions as [M+H]+, [M-H]-, or common ion adducts with alkali metals or organic acid anion adducts. It provides a table of common positive and negative molecular ion species.

### Does LMLipidCalc1 include other important biomolecules?

Yes, in addition to lipids, LMLipidCalc1 also includes fatty acids, fatty acid lipid mediators like prostaglandins and leukotrienes, steroids, sterols, bile acids, dolichols, prenols, and lipid-soluble vitamins like A, D3, E, and K, as well as coenzyme Q.

### How accurate are the m/z calculations in LMLipidCalc1?

The m/z is calculated at millimass unit accuracy. This high level of precision is crucial for accurate identification and analysis in lipidomic studies.

### What devices is LMLipidCalc1 available on?

LMLipidCalc1 is available for iPhone, iPad, and iPod devices. It is designed to be accessible on common Apple mobile platforms.

### When was LMLipidCalc1 last updated?

LMLipidCalc1 was last updated on December 21, 2020, with version 2.2.2. The application was also released on this date.

## Version history (last 1 release)

### 2.2.2 — 2020-12-21

No release notes.

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*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 2026-06-10.*