As a consequence of being indexed on Scopus and ESCI, the manuscripts we received increased during the 2010-2019 period. Details were given in Fig. 1. This increase is a formidable challenge. On the one hand, we are under pressure from authors who demand short review times and short waiting times for publication. On the other hand, we must strictly maintain the quality of the articles we publish (Fig. 2).

Figure 1. Number of Manuscript Received vs Accepted (2010-2019)

Figure 2. Rate of Article Acceptance (%) (2010-2019)

The following are the steps we have taken to guarantee and improve the quality of the published article:

1. Since 2017 we have used the Open Journal System (OJS) on all article management functions and facilities to manage articles more conveniently. The editors can supervise each other through the system. Also, editors can quickly monitor the performance of reviewers and authors.
2. We implement a more stringent filter at an early stage to reject inappropriate manuscripts to proceed to the review process. We have determined a minimum standard for articles to continue the review process.
3. We conduct strict plagiarism checks on manuscripts that we deem appropriate to proceed to the review process using professional software.
4. We hold editor training and discussion forums to improve editors' ability to handle manuscripts and synchronize mindsets in decision-making.
5. We invite editors with proven expertise from various countries and they are willing to help us voluntarily
6. We invite scientists from various countries as reviewers. Therefore, we really thank you for their commitment to voluntarily reviewing the articles.
7. We evaluate the review results from reviewers. As a result, our review time is relatively long; the average for the 2015-2019 period is 4-5 months (Fig. 3).
8. We do the copyediting stage carefully for articles that have been accepted. This step is needed to prevent substantial errors that are missed in the review process. Copyediting is also very useful to improve the readability of articles, the feasibility of illustrations, the suitability of citations and references, etc. This process takes an average of 3-4 weeks.
9. We improve the quality of the layout of articles with stringent standards so that the appearance of each article in each volume becomes uniform. We always try to shorten the time for article layout while maintaining quality.
10. We carry out the proofreading stage by the author and editor as a final check uploading the article in an online system —the time required at this stage is, on average, 2-3 weeks.
11. Finally, we post it in the "articles in press" section. Author and editor still have a chance to make revisions if they find unnecessary errors.
12. We are taking into account the waiting time between articles accepted to publish, which is sharply increased in the 2015-2019 period (from 4.3 to 8.8 months), see Fig 2. Through careful calculation, we manage the number of articles for each year's publication. Therefore, we increased the number of articles gradually from 43, 51, 68, 100, and 120. In 2020, we plan to publish 150 articles, which is distributed into 6 issues. The distribution of countries of origin of the authors for the 2015-2019 period is shown in Fig. 5

Figure 3. Average review time in the period of 2015-2019 (in weeks)

Figure 4. Average of waiting time from accepted to published (in months)

1. WD Fitriana, T Ersam, K Shimizu, S Fatmawati, 2016, Antioxidant Activity of Moringa oleifera Extracts, Indones. J. Chem., 16 (3), 297–301
2. A Rahman, A Ismail, D Jumbianti, S Magdalena, H Sudrajat, 2009, Synthesis of copper oxide nano particles by using Phormidium cyanobacterium, Indones. J. Chem., 9 (3), 355–360
3. MD Hidayati, T Ersam, K Shimizu, S Fatmawati, 2017, Antioxidant Activity of Syzygium polyanthum Extracts, Indones. J. Chem., 17 (1), 49–53
4. N Syafni, DP Putra, D Arbain, 2012, 3,4-Dihydroxybenzoic Acid and 3,4-Dihydroxybenzaldehyde from the Fern Trichomanes chinense L.; Isolation, Antimicrobial and Antioxidant Properties, Indones. J. Chem., 12 (3), 273–278
5. H Winarno, 2009, Benzophenone Glucoside Isolated from the Ethyl Acetate Extract of the Bark of Mahkota Dewa [Phaleria macrocarpa (Scheff.) Boerl.] and Its Inhibitory Activity on leukemia L121 Cell Line, Indones. J. Chem., 9 (1), 142–145
6. MT Ekaprasada, H Nurdin, S Ibrahim, D Dachriyanus, 2009, Antioxidant Activity of Methyl Gallate Isolated from the Leaves of Toona sureni, Indones. J. Chem., 9 (3), 457–460
7. CS Tang, MH Norziah, 2007, Stability of Betacyanin Pigments from Red Purple Pitaya Fruit (Hylocereus polyrhizus): Influence of pH, Temperature, Metal Ions and Ascorbic Acid, Indones. J. Chem., 7 (3), 327–331
8. N Herdyastuti, TJ Raharjo, M Mudasir, S Matsjeh, 2009, Chitinase and Chitinolytic Microorganism: Isolation, Characterization and Potential, Indones. J. Chem., 9 (1), 37–47
9. S Suryati, H Nurdin, D Dachriyanus, MNH Lajis, 2011, Structure Elucidation of Antibacterial Compound from Ficus deltoidea Jack Leaves, Indones. J. Chem., 11 (1), 67–70
10. A Hakim, L Liliasari, A Kadarohman, YM Syah, 2016, Improvement of Student Critical Thinking Skills with the Natural Product Mini Project Laboratory Learning, Indones. J. Chem., 16 (3), 322–328
11. A Ridhay, A Noor, NH Soekamto, T Harlim, I van Altena, 2012, A Stigmasterol Glycoside from the Root Wood of Melochia umbellata (Houtt) Stapf var. degrabrata K., Indones. J. Chem., 12 (1), 100–103
12. M Basyuni, N Amri, LAP Putri, I Syahputra, D Arifiyanto, 2017, Characteristics of Fresh Fruit Bunch Yield and the Physicochemical Qualities of Palm Oil during Storage in North Sumatra, Indonesia, Indones. J. Chem., 17 (2), 182–190
13. A Lesbani, P Tamba, R Mohadi, F Riyanti, 2013, Preparation of Calcium Oxide from Achatina fulica as Catalyst for Production of Biodiesel from Waste Cooking Oil, Indones. J. Chem., 13 (2), 176–180
14. I Fatimah, E Sugiharto, K Wijaya, I Tahir, K Kamalia, 2006, Titanium Oxide Dispersed on Natural Zeolite (TiO₂/Zeolite) and Its Application for Congo Red Photodegradation, Indones. J. Chem., 6 (1), 38–42
15. D Balarak, FK Mostafapour, 2019, Photocatalytic Degradation of Amoxicillin Using UV/Synthesized NiO from Pharmaceutical Wastewater, Indones. J. Chem., 19 (1), 211–218
16. K Wahyuningsih, ES Iriani, F Fahma, 2016, Utilization of Cellulose from Pineapple Leaf Fibers as Nanofiller in Polyvinyl Alcohol-Based Film, Indones. J. Chem., 16 (2), 181–189
17. H Natsir, AR Patong, MT Suhartono, A Ahmad, 2010, Production and Characterization of Chitinase Enzymes from Sulili Hot Spring in South Sulawesi, Bacillus sp. HSA,3-1a, Indones. J. Chem., 10 (2), 256–260
18. E Hermiati, J Azuma, D Mangunwidjaja, TC Sunarti, O Suparno, 2011, Hydrolysis of Carbohydrates in Cassava Pulp and Tapioca Flour under Microwave Irradiation, Indones. J. Chem., 11 (3), 238–245
19. S Sembiring, 2011, Synthesis and Charaterisation of Rice Husk Silica Based Borosilicate (B₂SiO₅) Ceramic by Sol-Gel Routes, Indones. J. Chem., 11 (1), 85–89
20. N Kasanah, T Triyanto, DS Seto, W Amelia, A Isnansetyo, 2015, Antibacterial Compounds from Red Seaweeds (Rhodophyta), Indones. J. Chem., 15 (2), 201–209

 (Based on Sinta database)

Indonesian Journal of Chemistry collaborate with the organizing committee of International conferences to give more opportunity of researchers around the world to publish their qualified research results presented in the conferences.

• The 5^th International Conference on Science and Technology (ICST 2019). Yogyakarta Indonesia, 30-31 July 2019. Link : http://icst.ugm.ac.id/2019/
• The International Symposium of Green Engineering & Technology 2019 (ISGET 2019). Malaysia 15-16 August 2019. Link : https://isget.uitm.edu.my
• International Conference On Chemical Sciences (ICCS 2019). Yogyakarta Indonesia, 15-16 August 2019. Link : http://iccs.ugm.ac.id/
  

To give more information and make easily in checking the relevance, since Volume 17 Nomor 1 reference style in the article has been changed, in which the references have to be completed with the  article title. Therefore, all authors are requested  to adapt that change. 

An example:

Utari, U., Kusumandari, K., Purnama, B., Mudasir, M., Abraha, K., 2016, Surface morphology of Fe(III)-porphyrin thin layers as characterized by atomic force microscopy, Indones. J. Chem., 16(3), 233-238

To improve and fasten services for users, since January 2017 Indonesian Journal of Chemistry have migrated from old: http://pdm-mipa.ugm.ac.id/ojs/index.php/ijc to new URL: https://jurnal.ugm.ac.id/ijc. Therefore, we invite all authors to submit your qualified manuscripts of original research articles, reviews, short communication in our Journal. Within two months (longest) from submission, the decision of acceptance or rejection has been made. Submission is suggested via online.