Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
notamy
9 months ago
|
parent
|
context
|
favorite
| on:
Researchers have identified the enzyme that gives ...
Riboflavin (B2) is a bright yellow and fluorescent under UV light. B12 is red and aiui it takes a LOT of B12 to turn urine red. This happens because both are water-soluble.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search: