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Synthesis Technologies and Analysis
Methcathinones
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Precursors
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4′-Methylpropiophenone bromination to 2-bromo-4'-methylpropiophenone. Large scale.
William D.
Sep 10, 2021
3
4
5
Replies
82
Views
121K
Jun 9, 2025
s7xm
S
Sticky
4'-Methylpropiophenone iodination to 2-iodo-4'-methylpropiophenone by iodine/cooper(II) oxide. Video manual.
William D.
Sep 10, 2021
2
Replies
31
Views
76K
May 15, 2025
Precursor-supplier
Sticky
2-Bromo-4'-methylpropiophenone synthesis from 4'-methylpropiophenone. Bromination in DCM or GAA.
William D.
Sep 9, 2021
2
Replies
20
Views
51K
Mar 28, 2025
whitelabel
W
Normal threads
T
I made some shit, so you don't have to...
The_Grand_Duel
Tuesday at 8:28 PM
Replies
4
Views
419
Yesterday at 11:11 PM
The_Grand_Duel
T
Synthesis of 4'-methylpropiophenone from toluene by Friedel-Crafts reaction (1kg+ scale)
William D.
Sep 8, 2021
2
3
4
Replies
68
Views
108K
Jun 24, 2025
Jack
J
B
Nitroethane, from ethyl bromide and potassium nitrite SN2 reaction link below
blinewalker
May 17, 2025
Replies
1
Views
2K
Jun 6, 2025
mewnmewamine
S
2bromo4 suppliers
studentt
May 18, 2023
Replies
15
Views
19K
Jun 6, 2025
Morda
M
A
China will not produce 2b4m anymore
Alchemistfromthahood
Jun 6, 2025
Replies
0
Views
742
Jun 6, 2025
Alchemistfromthahood
A
B
Bromination Question
Blammo
May 8, 2025
Replies
1
Views
1K
May 9, 2025
Dr. MMX
Propionyl chloride synthesis
NovicechemistEU
Nov 29, 2024
Replies
4
Views
5K
May 4, 2025
Osmosis Vanderwaal
Synthesis 2-iodo-4-methylopropiophenone with microwave
StarWars
Dec 26, 2022
Replies
15
Views
23K
May 3, 2025
w2x3f5
W
new legal bk-4
Tyram
Mar 19, 2025
Replies
4
Views
3K
May 3, 2025
w2x3f5
W
C
Phosphorous Extraction from Human Urine?!?
ClandestineNewB
Apr 21, 2025
Replies
2
Views
2K
May 3, 2025
w2x3f5
W
Price insanity for 2-bromo-3-methylpropiophenone compared to 2b4m + some quotes to compare
TheVacuumGuy
Nov 4, 2024
2
Replies
38
Views
19K
Apr 15, 2025
RegulierTier
Bromination of 4-methylpropiophenone with NBS/PTSA and solvent-free conditions (large scale)
William D.
Sep 12, 2021
2
Replies
25
Views
33K
Mar 23, 2025
whitelabel
W
Whats the 100g precursor?
TotoRina
Jan 13, 2025
Replies
4
Views
4K
Mar 6, 2025
SpaceRocket
S
nice and efficent route for self 2b4m syntehsis (avg 50 usd a kg)
Dr. MMX
Sep 22, 2024
2
Replies
24
Views
18K
Jan 14, 2025
w2x3f5
W
Z
can bromination of crude 4 methyl propiophenone be done?
Zenithberserker
Nov 12, 2024
Replies
4
Views
5K
Jan 11, 2025
William D.
S
2B4mp to cook 4-mmc
speed.lover
Jan 1, 2025
Replies
0
Views
3K
Jan 1, 2025
speed.lover
S
Locked
NEP synthesis (including Valerophenone and Nitroethan
toastpaws
Mar 25, 2023
Replies
2
Views
17K
Nov 14, 2024
HIGGS BOSSON
P
bk mdma(china precuror wash form brown to glass
PolandoEmingarnte
Aug 9, 2023
Replies
10
Views
16K
Nov 13, 2024
arundo
A
2b3m to something better?
lokozombo
Nov 2, 2024
Replies
2
Views
4K
Nov 2, 2024
Osmosis Vanderwaal
3'-Chloropropiophenone and 3'-Fluoropropiophenone Synthesis
G.Patton
Oct 31, 2024
Replies
0
Views
5K
Oct 31, 2024
G.Patton
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