A man who was among 51 customers taken to court two years ago for commercial sex with an underage escort was jailed for 10 weeks on Monday.

Malaysian Teoh Nai Jin, 38, is the 37th man to be jailed in the high profile online vice ring case.

The Singapore Permanent Resident was a manager at the time of the offence. He admitted to paying $500 for the sexual services of the minor at Hotel 81 Bencoolen in Bencoolen Street on Oct 22.

A district court heard that the escort, then 17, was working for pimp Tang Boon Thiew, 40, who ran the online vice ring via a website in 2010.

He procured women to provide escort services to men, who would contact Tang via the contact information on the website.

Teoh was browsing the Internet when he came across Tang's website in 2010.

After viewing the minor's details, he sent a text message to Tang on Oct 21 that year to book her services.

Tang replied that she was available the next day. He told him it would cost $500 an hour and the location would be Hotel 81 Bencoolen.

Teoh booked a room at the hotel.

The teen escort met Teoh who paid her $500 for her sexual services.

His lawyer Diana Ngiam said he had tried to verify the minor's age by asking her how old she was.

But he stopped short of checking the identity card of the minor, who was described as an 18-year-old on the website.

Teoh, who is married with two girls, could have been jailed for up to seven years and fined for commercial sex with a person under 18 years of age.