When starting a sentence with an IUPAC name that starts with a number, do you capitalize the first letter?

When you have an IUPAC name that starts with a number, i.e. "3,5-dinitrosalicylic acid", but it's at the start of the sentence would you capitalize the first letter in the name? For example:



> 
> 3,5-Dinitrosalicylic acid can reduce sugars with aldehyde or ketone functionality.
> 
> 
> 


or,



> 
> 3,5-dinitrosalicylic acid can reduce sugars.
> 
> 
> 




According to the ACS style guide [[1, p. 240](https://doi.org/10.1021/ed083p1603.1)]



> 
> Chemical names are not capitalized unless they are the first word of a sentence or
> are part of a title or heading. Then, the first letter of the syllabic portion is capitalized, not the locant, stereoisomer descriptor, or positional prefix.
> 
> 
> 


Therefore, the following capitalization is correct:



> 
> 3,5-Dinitrosalicylic acid can reduce sugars with aldehyde or ketone functionality.
> 
> 
> 


### Reference


1. *The ACS Style Guide: Effective Communication of Scientific Information*, 3rd ed.; Coghill, A. M., Garson, L. R., Eds.; American Chemical Society; Oxford University Press: Washington, DC; Oxford; New York, **2006**. DOI: [10.1021/ed083p1603.1](https://doi.org/10.1021/ed083p1603.1), ISBN 978-0-8412-3999-9.


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