Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_23 (cat_no VARCHAR, label_s_ VARCHAR, release_format VARCHAR)
### Question:
What is  the cat no for the label mute and the standard cd format?
### Answer:
SELECT cat_no FROM table_name_23 WHERE label_s_ = "mute" AND release_format = "standard cd"