MACE release 8 is now available. It contains 680 EI- and 50 Orbitrap mass spectra, including terpenoids, pheromones, alkaloids, lipids, etc.
The open-access data can be found at

doi.org/10.24355/dbb...

The MACE website with individual spectra is accessible via🧪

www.oc.tu-bs.de/schulz/html/...

We investigated the synthesis of methyl-branched long-chain alkyl methyl ethers, occurring in spider cuticular lipids. The late introduction of the methyl group appears to be superior compared to carrying it along from the beginning. See our article in Eur. J. Org. Chem.
doi.org/10.1002/ejoc...

MACE is an open-access mass spectral database of electron-impact (EI) mass spectra. Release 7 is now available with 520 EI spectra and 32 Orbitrap spectra.
doi.org/10.24355/dbb...
A description of MACE 7 can be found at:
www.oc.tu-bs.de/schulz/html/...
🧪 #secmet

Orchid bees love HNDB! We developed a short g-scale synthesis of this compound, 2-hydroxy-6-nona-1,3-dienylbenzaldehyde, published in Synlett:
www.thieme-connect.de/products/ejo... 🧪
#secmet #natprod

We have discovered a new type of steroid with contracted A-ring, the batrachane skeleton, in the gular scent glands of Odontobatrachus frogs. See the identification and synthesis of various batrachodienes, potentially used as signals, in Angew. Chem.
t.co/rmoLRDW0bC

We congratulate Natural Product Reports on 40 years of publication with a highlight on the chemistry of springtails. Please take a look at the fascinating compounds produced by these tiny soil dwellers.🧪
doi.org/10.1039/d4np...

MACE release 6 is now available. It contains over 420 EI mass spectra and almost 30 orbitrap mass spectra.
The data can be found at leopard.tu-braunschweig.de/receive/dbbs...
The MACE website with individual spectra is accessible via www.oc.tu-bs.de/schulz/html/...

In memory of the late Paul Weldon: This new but last joint paper describes unusual fatty acids from the scent glands of the endangered Mangshan pit viper.
www.beilstein-journals.org/bjoc/article... 🧪

Unique highly hetero-substituted benzenes are defense compounds from tiny springtails. The minute amounts available needed the combination of GC/MS, GC/IR, DFT calculation, and synthesis to arrive at the structures. 🧪

t.co/T6QQe72uiT

Springtails are great terpene chemists, but they can also synthesize other stuff. See our analysis of 23 species in iScience and their unique cuticular chemistry. Organic analysis and synthesis are needed to decipher their compounds.
t.co/dvoeGLFia8

Socialane, the first cyclic regular [9]-terpene was synthesized and identified by us as cuticular hydrocarbon of the tiny springtail Hypogastrura socialis. If you are interested its stereoselective synthesis, see doi.org/10.1002/chem... in Chemistry Eur. J.

Volatile salinilactones, produced by the bacterium Salinispora, target disulfide-isomerases. See doi.org/10.1002/advs... in Advanced Science, by K. Jerye et al. of the @BronstrupLab. This is one of the first studies describing how bacterial volatiles act.

The first issue of the Journal of Natural Products this year starts with our cover illustration. pubs.acs.org/toc/jnprdf/8...

MACE: MAss spectra for Chemical Ecology
We are happy to announce release 5 of MACE. MACE now includes 254 EI mass-spectra from 13 groups. Visit the MACE website oc.tu-bs.de/schulz/html/...
and the MACE data repository. doi.org/10.24355/dbb...
MACE is open access.

We discovered and synthesized the first cyclopropane containing cuticular hydrocarbon from an arthropod, called sarekensane. The high-mountain springtail Vertagopus sarekensis uses it. Identification requires derivatization and GC/MS methods. See more in J. Nat. Prod.
t.co/qObtLgiEFo