Shanghai Howell Petroleum Additives Co., Ltd.

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Contact: Ms. Pan Shu Yu - CEO
Web: http://www.howelladditives.com
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Address: 549,No.11,Wuhua Road, pudong, shanghai, China
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Profile: Shanghai Howell Petroleum Additives Co., Ltd. specializes in the marketing of additives for lube oil which include detergent, ashless dispersant, oxidant-corrosion inhibitor, EP antiwear, oily additive, demulsifying additive, antioxidant, metal de-activator, viscosity improver, antirust, and pour point depressant. We are an ISO 9001:2000 certified company. We also deal with fine chemicals like TMA, HCPE, THPA, and MTHPA. Our product line includes polyisobutylene monosuccinimide, polyisobutylene bissuccinimide, polyisobutylene polysuccinimide, high molecular succinimide, zinc butyl octyl dithiophosphate, secondary hydroxyl dithiophosphate, and methyl silicone oil. Our pour point depressant is used to lower freezing point. This product can improve low-temperature flowability of oil products which are mainly used in internal-combustion oil, machine oil and axle oil. Its reference dosage is 0.2%~1.0%. Detergent T104 is a low base number synthetic calcium sulfonate. This product can be used in blending various grades of lubricating oil for internal combustion engines.

5 Products/Chemicals (Click for related suppliers)

• Cis-4-Cyclohexene-1,2-Dicarboxylic Anhydride

IUPAC Name: (3aS,7aR)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione | CAS Registry Number: 935-79-5
Synonyms: 136891_ALDRICH, AIDS167582, TETRAHYDROPHTHALIC ANHYDRIDE, AIDS-167582, NSC49672, EINECS 213-308-7, NSC 49672, ZINC08100882, ZINC08382263, cis-1,2,3,6-Tetrahydrophthalic anhydride, cis-4-Cyclohexene-1,2-dicarboxylic anhydride, AI3-23866, cis-3a,4,7,7a-Tetrahydro-1,3-isobenzofurandione, 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-, cis-, 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-, (3aR,7aS)-rel-, 54684-06-9, 85-43-8

Molecular Formula:	C₈H₈O₃	Molecular Weight:	152.147320 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: KMOUUZVZFBCRAM-OLQVQODUSA-N

• Hexahydrophthalic Anhydride

IUPAC Name: 3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione | CAS Registry Number: 85-42-7
Synonyms: Lekutherm Hardener H, HHPA, Araldite HT 907, Hexahydrophthalic anhydride, 1,3-Isobenzofurandione, hexahydro-, Hexahydrophthalic acid anhydride, 1,2-Cyclohexanedicarboxylic anhydride, Hexahydro-2-benzofuran-1,3-dione, NT 907, NSC 8622, EINECS 201-604-9, NSC8622, Cyclohexane-1,2-dicarboxylic anhydride, 1,2-Cyclohexanedicarboxylic acid anhydride, EINECS 236-086-3, EINECS 238-009-9, cis-1,2-Cyclohexanedicarboxylic anhydride, cis-Cyclohexane-1,2-dicarboxylic anhydride, 1,3-Isobenzofurandione, hexahydro-, trans-, 1,3-Isobenzofurandione, hexahydro-, cis-

Molecular Formula:	C₈H₁₀O₃	Molecular Weight:	154.163200 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: MUTGBJKUEZFXGO-UHFFFAOYSA-N

• Methylhexahydrophthalic Anhydride

IUPAC Name: 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione | CAS Registry Number: 25550-51-0
Synonyms: 149934_ALDRICH, 5-Methylhexahydrophthalic anhydride, AIDS189629, AIDS-189629, EINECS 243-072-0, Hexahydro-4-methylphthalic anhydride, NSC128883, 5-Methyl hexahydro-1,3-isobenzofurandione, 4-Methyl-1,2-cyclohexanedicarboxylic anhydride, NSC 128883, 1,3-Isobenzofurandione, hexahydro-5-methyl-, 1,3-Isobenzofurandione, hexahydromethyl-, 5-Methyl-hexahydro-isobenzofuran-1,3-dione, 1,2-Cyclohexanedicarboxylic anhydride, 4-methyl-, Hexahydro-4-methylphthalic anhydride treated BSA, 4-Methylcyclohexyl-1,6-dicarboxylic acid anhydride, Hexahydro-4-methylphthalic anhydride, mixture of cis and trans, Hexahydro-4-methylphthalic anhydride treated bovine serum albumin, 19438-60-9, 15433-45-1

Molecular Formula:	C₉H₁₂O₃	Molecular Weight:	168.189780 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: FKBMTBAXDISZGN-UHFFFAOYSA-N

• Methyltetrahydrophthalic Anhydride

IUPAC Name: 7a-methyl-4,7-dihydro-3aH-2-benzofuran-1,3-dione | CAS Registry Number: 26590-20-5
Synonyms: Lindride, MeTHPA, Epoxy hardener zzla-0334, Methyltetrahydrophthalic anhydride, ZZLA-0334, AC 220J, Methyl tetrahydrophthalic anhydride, EINECS 247-830-1, EINECS 255-853-3, C9H10O3, Phthalic anhydride, methyltetrahydro-, AC 220, CID198243, 1,2,3,6-Tetrahydromethylphthalic anhydride, LS-64053, 2,3,5,6-Tetrahydro-2-methylphthalic anhydride, LS-109378, 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydromethyl-, 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-3a-methyl-, 106043-39-4

Molecular Formula:	C₉H₁₀O₃	Molecular Weight:	166.173900 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: SOOZEQGBHHIHEF-UHFFFAOYSA-N

• Trimellitic Anhydride

IUPAC Name: 1,3-dioxo-2-benzofuran-5-carboxylic acid | CAS Registry Number: 552-30-7
Synonyms: Anhydrotrimellic acid, Trimellitic acid anhydride, TRIMELLITIC ANHYDRIDE, Anhydrotrimellitic acid, Trimellic acid anhydride, TMAN, tri-mellitic anhydride, 4-Carboxyphthalic anhydride, Epon 9150, Trimellic acid 1,2-anhydride, Anhydride-ethomid ht polymer, Trimellitic acid 1,2-anhydride, B4600_ALDRICH, CCRIS 6282, NCI-C56633, HSDB 4299, WLN: T56 BVOVJ GVQ, 1,3-Dioxo-5-phthalancarboxylic acid, Trimellitic anhydride-dendrimers, 92120_FLUKA

Molecular Formula:	C₉H₄O₅	Molecular Weight:	192.125060 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: SRPWOOOHEPICQU-UHFFFAOYSA-N