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CN2911
29 Organic Chemicals
2911 (01/1988-..) Acetals and Hemiacetals, Whether or not With Other Oxygen Function, and Their Halogenated, Sulphonated, Nitrated or Nitrosated Derivatives
29110000 (01/1988-..) Acetals and Hemiacetals, Whether or not With Other Oxygen Function, and Their Halogenated, Sulphonated, Nitrated or Nitrosated Derivatives