The cache is NOT at the posted coordinates, though, the people in the building there may be able to help you solve this.
⚗️ Welcome to the Chemical Chain Reaction Lab! 🧪
This puzzle is inspired by chemical reactions and my fondness for word games. Just as atoms break and form bonds to transform into new compounds, you will need to transform chemistry-related words through changes that will eventually reveal the cache coordinates.
Your task is to determine the chemical chain reactions below step by step, each time changing only a single letter to reveal a new chemistry-related word. Concatenate each new letter from each line starting from line 2, in order, and paste that letter sequence into the Certitidue checker to reveal the coordinates. There are 14 clues, but 13 “reactions,” so your final result should be 13 characters long.
Here is an example:
If the chemical chain reactions were (1) ION ➡️ (2) TON ➡️ (3) TIN You would enter “TI” into the checker since T was the replacement letter to make TON and I was the replacement letter to make TIN.
Now to the actual puzzle. Get your lab notebooks and writing implements ready:
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1
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O2-
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2
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RR’C=N−OH
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3
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148-24-3
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4
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A non-chlorinated compound used to shock pools and spas
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5
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An allotrope of oxygen that is a pale blue gas
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6
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A skin penetration enhancer used in various cosmetic and pharmaceutical formulations
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7
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8
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9
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R−C(=O)−NR′R″
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10
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Combined with "black", it is used in forensics to detect blood in fingerprints
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11
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Valine and tyrosine are examples of this type of acid
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12
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Combined with "acid", this is an archaic term for: 
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13
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C=N
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14
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A nitrogen atom bonded to two acyl groups
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You can validate your puzzle solution with
certitude.