I'm getting "Incorrect syntax near the keyword 'GROUP'."

SELECT  d.sDepository_Desc,
	c.sCommodity_Desc,
	p.sProduct_CD, 
        p.sProduct_Desc1, 
        i.decInv_Physical_Qty,
        p.decProduct_Ozconv,
        i.decInv_Physical_Qty * p.decProduct_Ozconv AS Ounces
	FROM Product p
	JOIN Inventory i on i.sProduct_CD = p.sProduct_CD
	JOIN Commodity c on c.sCommodity_CD = p.sCommodity_CD
	JOIN Depository d on d.sDepository_CD = i.sDepository_CD
	ORDER BY i.sProduct_Cd, c.sCommodity_CD, p.sProduct_CD
	GROUP BY d.sDepository_Desc, c.sCommodity_Desc, p.sProduct_CD

This runs fine if I remove the GROUP BY clause