JACS 'Under Review': What Each Status Means and When to Expect a Decision

ACS does not publish portal status names or per-status durations; its published medians are submission-to-decision figures. The table below is a planning estimate based on community reports and our experience, not an ACS schedule.

Before the paper reaches external reviewers, a JACS editor decides whether the chemistry warrants external review. ACS says submissions outside the journal's scope or not sufficiently novel may be recommended for Manuscript Transfer or returned without further processing, and it publishes no rejection percentage for this stage.

A desk rejection most often means the editors concluded that the work would fit better at a sister ACS chemistry journal (Journal of the American Chemical Society Au for open-access cascade, ACS Catalysis for catalysis focus, JACS Au for open access, Organic Letters or Inorganic Chemistry for subspecialty cascade) or that the chemistry-priority bar is not met.

Here is what is happening at each stage while the portal shows "Under Review":

• Days 0 to 3, file check (estimate): The editorial office checks that the submission is complete: manuscript with figures embedded, Supporting Information as separate files, cover letter, and the required forms. Incomplete manuscripts must be corrected before peer review, and the receipt date is recorded when the complete manuscript arrives.

• Days 3 to 10, Associate Editor read: The Associate Editor reads the paper and evaluates chemistry-significance, methodological rigor, characterization data adequacy, and JACS subspecialty routing.

• Days 10 to 24, reviewer recruitment: JACS Associate Editors invite external reviewers, with recruitment typically taking 7 to 14 days (our estimate). The window can take longer because reviewers with topic-matched chemistry subspecialty expertise (especially across organic, inorganic, physical, and materials chemistry boundaries) are scarce.

• Days 10 to 56, active peer review: Once reviewers agree, the typical JACS peer-review cycle lasts 3 to 6 weeks per reviewer, contributing to the 1.2-month first review round average. Reviewers evaluate chemistry-significance, methodological rigor, characterization data, and reproducibility.

• After day 56, synthesis and decision: After reports return, the Associate Editor synthesizes them. The 1.8-month total handling time for accepted manuscripts reflects revision rounds and editorial discussion.

• Rejection within 1 to 3 days: Administrative issue or immediate scope mismatch.

• Rejection within 5 to 10 days: Associate Editor desk rejection, in line with the 8-day SciRev average.

• Still Under Review after 2 weeks: Strong signal. Paper has likely passed the desk screen.

• Still Under Review after 10 weeks: Reviewer-recruitment or reviewer-report delay. A polite inquiry via the ACS Publishing Center is appropriate.

• Status changes to "Decision Pending": Reports are in; expect a decision within 1 week.

This is the most common anxiety we hear from JACS authors during the active editorial window. The honest answer: no, 5 weeks at Under Review puts you right at JACS's 1.2-month first review round average. Reports may already be in editorial synthesis with the Associate Editor preparing the recommendation.

Most reviewer-driven delays come from reviewer-recruitment timing for chemistry subspecialty experts rather than slow reviews, because JACS recruits topic-matched chemistry reviewers who are working researchers with their own laboratories. If the portal still says Under Review at the 8-week mark, the most likely explanation is that one of the assigned reviewers asked for an extension and the Associate Editor granted it. This is normal practice at JACS.

What you should NOT do during the 5-to-8-week window is email the editorial office. An inquiry at 5 weeks usually adds friction without accelerating the timeline.

If your JACS paper is rejected after review, the natural cascade depends on what the reviewers and Associate Editor cited:

JACS Au is the natural ACS open-access cascade for chemistry papers where the JACS priority bar is not met but the rigor is high. ACS supports manuscript-transfer with reviewer reports preserved.

ACS Catalysis is the natural ACS cascade for catalysis-focused chemistry papers. ACS Catalysis uses the ACS Publishing Center; editorial contact catal@acs.org.

Organic Letters / Journal of Organic Chemistry is the ACS cascade for organic chemistry papers.

Inorganic Chemistry is the ACS cascade for inorganic chemistry papers.

Angewandte Chemie is the external Wiley cascade for top-tier chemistry communications. Angewandte Chemie uses ScholarOne at ScholarOne submission portal; editorial contact angewandte@wiley.com.

Nature Chemistry / Nature Chemical Biology are external Springer Nature cascades for top-tier chemistry mechanism work.

ACS asks reviewers at JACS to evaluate four things specifically: the scientific value of the work, the level of interest to the broad and diverse readership, the appropriateness of the literature citations, and the clarity and conciseness of the writing. The table below maps each to actionable preparation.

Across JACS-targeted manuscripts, three named patterns generate the most consistent reviewer concerns and the most common reasons papers miss the editorial bar or fail the desk screen. JACS reviewers are not just checking whether the chemistry works. They are checking whether the paper advances a chemistry principle at JACS breadth, whether the characterization package supports every structural or mechanistic claim, and whether the Supporting Information would let another lab reproduce the work without private clarification.

Narrow-chemistry framing flagged at the desk screen. When the introduction frames the work too narrowly without broader chemistry significance, desk rejection within about 8 days is common. We see this most often in manuscripts that lead with a molecule class, catalyst family, or materials platform before explaining the general chemistry principle. The strongest JACS submissions make the first figure and first page answer why the result matters to chemists outside the immediate subfield.

Check whether your JACS framing has broad chemistry significance →

Characterization data gaps surface as reviewer concerns. When characterization data is thin, especially incomplete NMR assignments, missing mass spectrometry confirmation of molecular formula, absent crystallographic data for novel compounds, or weak control experiments for catalytic claims, JACS reviewers consistently request expanded Supporting Information. The strongest revisions add complete characterization data with peak assignments, raw spectra where useful, crystallographic files, stability controls, and direct comparison to the most relevant benchmark.

Check if your JACS characterization package is complete →

ACS family cascade offers from Associate Editor. When the Associate Editor concludes the work is rigorous but the chemistry priority bar of JACS is not met, transfer offers to JACS Au, ACS Catalysis, Organic Letters, Inorganic Chemistry, or another ACS journal are common. In our JACS-targeted reviews, cascade offers are most useful when the authors can distinguish a priority problem from a validation problem.

A paper with complete characterization but narrower chemistry significance may cascade well; a paper with missing spectra, missing controls, or unclear methods usually needs repair before transfer.

Check your JACS cascade route before accepting a transfer →

This guide tells you what JACS editors look for while the manuscript is being routed or reviewed. The review tells you whether your paper passes that check before the decision arrives. We have reviewed manuscripts targeting JACS and peer chemistry venues; the named patterns above are the same ones handling editors and outside reviewers flag during first review. 60-day money-back guarantee. Your manuscript is not used for model training, and access is limited to the review workflow.

This page was created from ACS's public JACS author guidelines at ACS author guidance, SciRev community-reported transit data on JACS (8-day immediate rejection average, 1.2-month first review round, 1.8-month total accepted), and Manusights pre-submission review experience with JACS-targeted manuscripts.

Source limitation: ACS public materials and SciRev reports explain JACS process timing, but they do not expose Associate Editor notes, reviewer-invitation loops, or why a particular ACS Publishing Center status persists. Official guidance covers the visible workflow; the added Manusights layer comes from our pre-submission review work across JACS and adjacent chemistry venues, where the strongest predictor of author confusion was whether the abstract, Supporting Information, and characterization package made the chemistry-priority case testable before reviewer reports arrived.

For the ACS chemistry landscape beyond JACS, see JACS Au (ACS open-access cascade), ACS Catalysis (catalysis specialty), Organic Letters and Journal of Organic Chemistry (organic chemistry), Inorganic Chemistry (inorganic specialty), and external chemistry alternatives (Angewandte Chemie, Nature Chemistry, Nature Chemical Biology, Chemical Science).

The choice across these titles depends on whether the central contribution is top-tier ACS chemistry breadth (JACS), ACS open-access (JACS Au), catalysis priority (ACS Catalysis), organic chemistry (Organic Letters / JOC), inorganic chemistry (Inorganic Chemistry), top-tier chemistry communications (Angewandte Chemie), or top-tier chemistry mechanism (Nature Chemistry, Nature Chemical Biology).

Editors screen and triage manuscripts before any external reviewer sees them, and preparing a response template that addresses both chemistry-significance and characterization-data perspectives accelerates revision rounds substantially.

For a pre-upload check of your manuscript against the JACS chemistry-priority-plus-characterization bar before submission, our JACS pre-submission diagnostic flags the framing and characterization weaknesses most likely to surface in reviewer reports.