Catalytic Reaction Guide
v3.3 · 26.3 MB · code 30
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File information
UpdatedJan 17, 2020
PublishedSep 13, 2017
Packagecom.crgapp.main
Versionv3.3 (30)
Size26.3 MB
MD5de137ee760c25f2ed7efc9a5ac124bd3
Min SDK14
Malware scanTRUSTED
Signature SHA199:AF:5A:23:D7:8D:1E:2E:BA:38:9A:E1:DA:82:23:81:76:3E:73:8A
SignerCN=Johnson Matthey, OU=Johnson Matthey, O=Johnson Matthey, L=Karur, ST=TamilNadu, C=IN
Total downloads100,000
This version100,000
DeveloperCatalysis and Chiral Technologies
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2020-01-17
- Scanned for malware 2021-01-26 08:12:18
- Signature SHA1 99:AF:5A:23:D7:8D:1E:2E:BA:38:9A:E1:DA:82:23:81:76:3E:73:8A
- File MD5 de137ee760c25f2ed7efc9a5ac124bd3
How to install Catalytic Reaction Guide v3.3 on Android API 14+
Takes about 2 minutes. You'll need roughly 26.3 MB of free storage.
- Grab com.crgapp.main_30.apk — hit the Download button above (26.3 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches de137ee760c25f2e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.crgapp.main_30.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Johnson Matthey, OU=Johnson Matthey, O=Johnson Matthey, L=Karur, ST=TamilNadu, C=IN. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Catalytic Reaction Guide — tap Open on the install screen, or find the Catalytic Reaction Guide icon in your app drawer.
Common install errors for Catalytic Reaction Guide
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 14 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.