Cops raided a Manhattan drug den Tuesday night and arrested suspected dealers who may have been the ones who sold heroin to actor Philip Seymour Hoffman, sources said.

Authorities entered the Mott Street building and at around 7:30 p.m. and nabbed four people after getting a tip that the “Capote” star was sold heroin there a couple of months ago.

The cops found about 350 glassine envelopes with what appeared to be heroin inside in three apartments in the building, according to law enforcement sources.

The bags found in the apartments did not have the “Ace of Spades” stamp, which were on the bags found in Hoffman’s apartment, sources said.

Cops were acting on a tip and obtained a search warrant for the raid, sources said.

Police arrested Robert Vineberg, 57, Thomas Kushman 48, and charged them with felony drug possession.

Two younger people, Max Rosenblum and Juliana Luchkiw, both 22, were arrested and charged with misdemeanor drug possession.

Luchkiw, a student at The New School, was camera shy at the 9th Precinct Station House in Manhattan Wednesday morning.

“Stop taking pictures, stop taking pictures,” she yelled at a photographer.

Her colleague Rosenblum tried to console her.

“This has nothing to do with you, babe,” he said.

When asked if he sold Hoffman heroin Vineberg, a musician who goes by the name Robert Aaron and has played with stars like Wyclef Jean and Tom Jones, denied it.

“No, I did not,” he said sheepishly.