UH Controlled Chemicals List - University of Houston
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Environmental Health & Safety

Chemical Safety

UH Controlled Chemicals List

 

List # Chemical Name Synonyms CAS Number1 Risk Assessment
(DOT-Class 1.1A Explosive; DHS-Department of Homeland Security; HTG-Highly Toxic Gas, PFC-Class 1 Peroxide Formers, RW-Radiation Waste, DUC-Dual Use Chemical)		 The purchase of the chemical needs:    
1 Barium azide   18810-58-7 DOT CSC approval4
2 Diazodinitrophenol   4682-03-5 DOT CSC approval4
3 Guanyl nitrosaminoguanylidene hydrazine Guanyl nitrosaminoguanyltetrazene; Tetrazene 109-27-3 DOT CSC approval4
4 Lead azide   13424-46-9 DOT CSC approval4
5 Lead styphnate   15245-44-0 DOT CSC approval4
6 Mercury fulminate   628-86-4 DOT CSC approval4
7 1,3-Bis(2-chloroethylthio)-n-propane   63905-10-2 DHS CSC approval4
8 1,4-Bis(2-chloroethylthio)-n-butane   142868-93-7 DHS CSC approval4
9 1,5-Bis(2-chloroethylthio)-n-pentane   142868-94-8 DHS CSC approval4
10 2-Chloroethylchloro-methylsulfide   2625-76-5 DHS CSC approval4
11 Bis(2-chloroethylthio)methane   63869-13-6 DHS CSC approval4
12 Bis(2-chloroethylthiomethyl)ether   63918-90-1 DHS CSC approval4
13 Chlorosarin o-Isopropyl methylphosphonochloridate; Agent GF 1445-76-7 DHS CSC approval4
14 Chlorosoman o-Pinacolyl methylphosphonochloridate 7040-57-5 DHS CSC approval4
15 DF Methyl phosphonyl difluoride 676-99-3 DHS CSC approval4
16 Ethyl phosphonyl difluoride   753-98-0 DHS CSC approval4
17 HN1 (nitrogen mustard-1) Bis(2-chloroethyl)ethylamine 538-07-8 DHS CSC approval4
18 HN2 (nitrogen mustard-2) Bis(2-chloroethyl)methylamine 51-75-2 DHS CSC approval4
19 HN3 (nitrogen mustard-3) Tris(2-chloroethyl)amine 555-77-1 DHS CSC approval4
20 Isopropylphosphonyl difluoride   677-42-9 DHS CSC approval4
21 Lewisite 1 2-Chlorovinyldichloroarsine 541-25-3 DHS CSC approval4
22 Lewisite 2 Bis(2-chlorovinyl)chloroarsine 40334-69-8 DHS CSC approval4
23 Lewisite 3 Tris(2-chlorovinyl)arsine 40334-70-1 DHS CSC approval4
24 Mustard gas (H) Sulfur mustard; Bis(2-chloroethyl)sulfide 505-60-2 DHS CSC approval4
25 O-Mustard (T) Bis(2-chloroethylthioethyl)ether 63918-89-8 DHS CSC approval4
26 Propylphosphonyl difluoride   690-14-2 DHS CSC approval4
27 QL o-Ethyl-o-2-diisopropylaminoethyl methylphosphonite 57856-11-8 DHS CSC approval4
28 Sarin o-Isopropyl methylphosphonofluoridate; Agent GB 107-44-8 DHS CSC approval4
29 Sesquimustard 1,2-Bis(2-chloroethylthio)ethane 3563-36-8 DHS CSC approval4
30 Soman o-Pinacolyl methylphosphonoluoridate; Agent GD 96-64-0 DHS CSC approval4
31 Tabun o-Ethyl-N,N-dimethylphosphoramido-cyanidate; Agent GA 77-81-6 DHS CSC approval4
32 VX o-Ethyl-S-2-diisopropylaminoethyl methyl phosphonothiolate; Agent VX 50782-69-9 DHS CSC approval4
33 Arsenic trichloride Arsenous trichloride; Arsenic chloride; Arsenic butter 7784-34-1 DHS EHS approval3
34 Diethyl methylphosphonite   15715-41-0 DHS EHS approval3
35 Ethylphosphonothioic dichloride   993-43-1 DHS EHS approval3
36 Isopropylphosphonothioic dichloride   1498-60-8 DHS EHS approval3
37 Methylphosphonothioic dichloride   676-98-2 DHS EHS approval3
38 N,N-(2-diethylamino)ethanethiol   100-38-9 DHS EHS approval3
39 N,N-(2-diisopropylamino)-ethanethiol N, N-diisopropyl-(beta)-aminoethane thiol 5842-07-9 DHS EHS approval3
40 N,N-(2-dimethylamino)ethanethiol   108-02-1 DHS EHS approval3
41 N,N-(2-dipropylamino)ethanethiol   5842-06-8 DHS EHS approval3
42 N,N-Diethyl phosphoramidic dichloride   1498-54-0 DHS EHS approval3
43 N,N-Diisopropyl phosphoramidic dichloride   23306-80-1 DHS EHS approval3
44 N,N-Dimethyl phosphoramidic dichloride Dimethylphosphoramido-dichloridate 677-43-0 DHS EHS approval3
45 N,N-Dipropyl phosphoramidic dichloride   40881-98-9 DHS EHS approval3
46 Nitrogen mustard hydrochloride Bis(2-chloroethyl)methylamine hydrochloride 55-86-7 DHS EHS approval3
47 o,o-Diethyl S-[2-(diethylamino)ethyl] phosphorothiolate Amiton; Inferno; Agent VG 78-53-5 DHS EHS approval3
48 Propylphosphonothioic dichloride   2524-01-8 DHS EHS approval3
49 Thiodiglycol Bis(2-hydroxyethyl)sulfide; 2,2′-Thiodiethanol 111-48-8 DHS EHS approval3
50 Arsine Arsenic anhydride; Agent SA 7784-42-1 DHS, HTG EHS approval3 when order in compressed gas
51 Chlorine pentafluoride   13637-63-3 DHS, HTG EHS approval3 when order in compressed gas
52 Diborane Boroethane; Boron hydride 19287-45-7 DHS, HTG EHS approval3 when order in compressed gas
53 Dinitrogen tetroxide   10544-72-6 DHS, HTG EHS approval3 when order in compressed gas
54 Fluorine   7782-41-4 DHS, HTG EHS approval3 when order in compressed gas
55 Hydrogen cyanide Hydrocyanic acid; Aero liquid HCN; Agent AC 74-90-8 DHS, HTG EHS approval3 when order in compressed gas
56 Hydrogen selenide Selane 7783-07-5 DHS, HTG EHS approval3 when order in compressed gas
57 Nitric oxide   10102-43-9 DHS, HTG EHS approval3 when order in compressed gas
58 Nitrogen trioxide   10544-73-7 DHS, HTG EHS approval3 when order in compressed gas
59 Nitrosyl chloride   2696-92-6 HTG EHS approval3 when order in compressed gas
60 Oxygen difluoride   7783-41-7 DHS, HTG EHS approval3 when order in compressed gas
61 Phosgene Carbonic dichloride; carbonyl dichloride; Agent CG; Agent DP 75-44-5 HTG EHS approval3 when order in compressed gas
62 Phosphine Celphos; Delicia 7803-51-2 DHS, HTG EHS approval3 when order in compressed gas
63 Selenium hexafluoride   7783-79-1 DHS, HTG EHS approval3 when order in compressed gas
64 Stibine Antimony hydride; Antimony trihydride 7803-52-3 DHS, HTG EHS approval3 when order in compressed gas
65 Sulfur tetrafluoride Sulfur fluoride (SF4), (T-4)-; Sulfur fluoride 7783-60-0 DHS, HTG EHS approval3 when order in compressed gas
66 Tellurium hexafluoride Tellurium fluoride 7783-80-4 DHS, HTG EHS approval3 when order in compressed gas
67 Cyanogen chloride Chlorcyan; Agent CK 506-77-4 HTG EHS approval3 when order in compressed gas
68 Germanium tetrafluoride   7783-58-6 DHS EHS approval3 when order in compressed gas
69 Hydrogen sulfide Sewer gas; Stink damp 7783-06-4 DHS EHS approval3 when order in compressed gas
70 Hydrogen fluoride (anhydrous)   7664-39-3 DHS EHS approval3 when order in compressed gas
71 Tungsten hexafluoride Tungsten fluoride 7783-82-6 DHS, HTG EHS approval3 when order in compressed gas
72 Bromine trifluoride   7787-71-5 DHS, HTG EHS notification
73 Chlorine trifluoride   7790-91-2 DHS, HTG EHS approval3 when order in compressed gas
74 Phosphorus trichloride   7719-12-2 DHS, HTG EHS notification2
75 Trifluoroacetyl chloride   354-32-5 DHS, HTG EHS approval3 when order in compressed gas
76 Titanium tetrachloride FM 7550-45-0 DHS, HTG EHS notification2
77 Methylisocyanate Methyl carbylamine 624-83-9 HTG EHS notification2
78 Nickel carbonyl   13463-39-3 HTG EHS notification2
79 Nitrogen dioxide   10102-44-0 HTG EHS approval3 when order in compressed gas
80 Phosphorus oxychloride Phosphoric chloride 10025-87-3 HTG EHS notification2
81 Butadiene 1,3-Butadiene; Biethylene 106-99-0 PFC EHS notification2
82 Chloroprene 2-Chlorobuta-1,3-diene 126-99-8 PFC EHS notification2
83 Divinyl acetylene 1,5-Hexadien-3-yne 821-08-9 PFC EHS notification2
84 Isopropyl ether Diisopropyl ether 108-20-3 PFC EHS notification2
85 Potassium metal   7440-09-7 PFC EHS notification2
86 Potassium amide   17242-52-3 PFC EHS notification2
87 Sodium amide Sodamide 7782-92-5 PFC EHS notification2
88 Tetrafluoroethylene Perfluoroethene; Perfluoroethylene 116-14-3 PFC EHS notification2
89 Vinylidene chloride 1,1-Dichloroethylene; 1-1-DCE; VDC 75-35-4 PFC EHS notification2
90 Thorium   7440-29-1 RW EHS approval3
91 Thorium containing chemicals     RW EHS approval3
92 Uranium   7440-61-1 RW EHS approval3
93 Uranium containing chemicals     RW EHS approval3
94 Uranyl acetate   6159-44-0 RW EHS approval3
95 Uranyl formate   16984-59-1 RW EHS approval3
96 Uranyl nitrate   13520-83-7 RW EHS approval3
97 Boron tribromide Borane, tribromo 10294-33-4 DHS EHS notification2
98 Boron trichloride Borane, trichloro 10294-34-5 DHS EHS notification2
99 Boron trifluoride Borane, trifluoro 7637-07-2 DHS EHS notification2
100 Bromine chloride   13863-41-7 DHS EHS notification2
101 Carbonyl fluoride Carbon oxyfluoride; Fluophosgene 353-50-4 DHS EHS notification2
102 Cyanogen Ethanedinitrile; Carbon nitride; Dicyan 460-19-5 DHS EHS notification2
103 Dichlorosilane Silane, dichloro- 4109-96-0 DHS EHS notification2
104 Germane Germanium tetrahydride; Germanium hydride 7782-65-2 DHS EHS notification2
105 Hexafluoroacetone 6FK 684-16-2 DHS EHS notification2
106 Methylchlorosilane   993-00-0 DHS EHS notification2
107 Perchloryl fluoride Chlorine oxyfluoride; Chlorine fluoride oxide; Trioxychlorofluoride 7616-94-6 DHS EHS notification2
108 Silicon tetrafluoride Perfluorosilane 7783-61-1 DHS EHS notification2
109 Sodium cyanide Cyanogran; Cymag 143-33-9 DUC EHS notification2
110 Potassium cyanide 151-50-8 DUC EHS notification2

 

1CAS Number- The Chemical Abstract Service assigns CAS Numbers, a unique numerical identifier, to every chemical substance described in open scientific literature. The registry maintained by CAS is the authoritative collection of disclosed chemical substance information. To determine whether the chemical you intend to purchase is restricted by UH, find the CAS number. This is different from the Catalog or Product numbers which vary by supplier. CAS numbers can always be found on the Safety Data Sheet. Once found, search the list above using the Find feature to see whether your chemical's CAS number is listed.

2EHS notification: PI/Requestor will be required to complete the Pre-Approval Form for Requisitions with EHS Hazardous/Regulated Materials, purchase requisition. EHS will document the related information and approve PI/requestor the same day the purchase request is received.

3EHS Approval: PI/Requestor will be required to complete the Pre-Approval Form for Requisitions with EHS Hazardous/Regulated Materials, purchase requisition. EHS will contact the PI the same day the purchase request is received for additional information to determine if any further action on the chemical.  The purchase of the chemical may be exempt from the approval process due to physical state, concentration, quantity, or properties of the gas mixture after EHS’s analysis.  

  1. For exempt cases, Action is downgraded to EHS notification.
  2. For non-exempt cases, EHS will arrange an in-person visit to discuss the safety requirements with the PI/Requestor. Based on discussion, PI/Requestor proposes the safety plan and submits it to EHS for review and approval.
  3. For the repeated order, if there is no change from previously approved order, Action will be downgraded to EHS notification.

4CSC Approval:  PI/Requestor will be required to complete the Pre-Approval Form for Requisitions with EHS Hazardous/Regulated Materials, purchase requisition. EHS will contact the PI the same day the purchase request is received for additional information. EHS will arrange an in-person visit to discuss the safety requirements with the PI/Requestor. Based on discussion, PI/User will propose the safety plan and submit to EHS for pre-review and Chemical Safety Committee (CSC) for final review and approval.